My feedback -

I genuinely LOVE the idea and the setting! The only actual problem imo is the amount of text you have to go through for each section.. I and many others hate that haha, and i too wanted to quit cuz i had to read all that.

Tho the text walls being divided and only appearing when that part of the game is interacted with is better than nothing but i still think you can atleast optimize that text to be more small pointers of 1 line each to get the point across.

Other than that
For the feedback you wanted..

I love the music and the backgrounds! Ig you could work a bit more on the backgrounds and the ui to make them look better but i think the music is really cool and fits in perfectly for me. The only nitpick for the music was the transition between days.. I could always notice the music whenever a day changed.. 

Tho that was kinda useful ig to keep track of when  i crossed a day.. Maybe you could fix the transitions and add a feature where you get a notification or maybe the transition itself sticks out less but is noticible enough to tell the player that a day has passed..

I do agree from another commenter that the game could use some more SFX here and there, but it  wasnt that big a problem imo

some more smaller nitpiicks were - 
- The endings could be more expressive, like they get the message across but maybe some text there aswell? I mean that is the one place i would not mind reading some text haha
- When the rats die in testing, their sprite change is not very noticible.. Maybe there was more of a change like a smell coming off of their bodies or like just small "x" on their eyes to communicate that they have died
- This one is even smaller but for the intro text revealing, the revealed text moves to adjust for the text that is being revealed, imo its better if the text that has been revealed does not move after the matter...
(you can change the "Visible Characters behaviour" property of the text node in the editor for this)

Overall I loved the game! Iirc i was around day 4 hour 5 when i finished which was my first attempt so its pretty lenient and not really hard to beat..
Its not exactly hard i mean but still quite fun to go around and play with the researching and crafting system

Tho i do need to mention that it CAN get a bit monotonous researching and sleeping constantly to get new stuff (as i kept sleeping for an hr or 2 and researching instead of taking long breaks)..
(tbh the crafting and recepie unlocks arent that infrequent but i did notice this problem once or twice)
For the researching, maybe you could have an alternate via a computer so you also gotta research on the internet maybe and have some new mini games there aswell

But.. 
It feels good to save an entire town :)

Really interesting concept. I think the time given is just enough to make the player feel stressed and on the verge of failing! I think you nailed the difficulty.

I took some notes while playing!

• Typewriter text SFX: The sound effect is a bit harsh on the ears. I would make it softer and less prominent.
• Tutorials: There’s quite a lot of information to take in when starting the game. I think integrating the tutorials directly into the gameplay by asking the player to perform specific actions would work better. For example, instead of simply showing something like “Time to study” or “Click here to study,” you could guide the player through the action as they encounter it. The same could be done with the energy system: after completing the first task, reveal the energy bar and explain something like “Doing tasks consumes energy” and “You can only complete so many tasks each day, so choose wisely.”
• Music: I think the music is a little too fast-paced for the game. Something slower and more relaxed might fit the overall experience better.
• Sound effects: Overall, I think the game would benefit from having more sound effects to make the different interactions feel more responsive.

Otherwise fun experience, thanks for making the game!

I'm going to post my notes until the point I reached and update them later.

Overall, I think you put a lot of effort and I assume your priority is to learn first and foremost. In that sense - well done! 

The design is interesting - you are making a few systems which interact with each other.

I see that you made the font yourself. Are you doing something unique and different - is it worth the effort to do it? Do you think in the limited time for a jam investing the time and effort into it steals away from other aspects of the game? For example you have a game like Pentiment (by Obsidian) where they did a custom font because it was central to the game - more details here https://lettermatic.com/custom/pentiment 

You mentioned that you use Aseprite - I personally have not used it as I'm aware it can be time consuming to draw one pixel at a time. Have you thought about using other software such as Krita? It is free and there are many types of brushes.

The art is OK but it is kind of flat - there is no depth, it does not feel like a real place. You may find this talk interesting - basically even professional artists ues hacks to do more in less time. Nothing wrong with that approach. Also - you can see many artists drawing something and then drawing over it again to make a cleaner, better looking version. I have usd Krita in this way. Cannot say about Aseprite. This is very important if you are serious about drawing.

For the slow and elaborate gameplay the music is too fast paced. I feel like the music is more suited for an action game not for this one.

To be continued...

Great game overall. Regarding music, I think it fits, but at the same time its kinda basic and very repetitive. You could improve it further in my opinion.

Art looks good in my opinion. But my biggest gripe with this game is this font... Its painful to read. I kinda get the idea behind it, but I wish you used a simpler font.

Also a suggestion regarding dialogue in the intro, it would be better if visible portion of the text isn't moving, as the typewriter effect is revealing letters. Right now reading the text as it's being revealed is almost impossible.

Lastly I encountered a game breaking bug when I tried to craft my cure. At first the crafting system seems to work fine. I even made solution C successfully. But then when I tried to make solution X, the crafting system just stops working for some reason. I put my ingredients, and nothing happens, and I can't craft anything at all

The music is great I really liked how you had to put the cd into the boombox to get it going.  That moment doubles as a secret micro tutorial on the controls so that's awesome!  I like the music because its both a bit hectic and sets the tone but it's also not so distracting that I'm not able to focus, well done!  I would certainly say that it fits the atmosphere!

I like the art overall!  I really like the hand made feel of the whole game.  It's refreshing and desirable at this juncture in game dev to see hand designed artwork and pixel art.  Nice of you to shout out your tooling right in the game menu too that's a nice touch!

One random thought was that despite the name being count down not much "counts down"  obviously the time pressure is there but the clock itself counts up.  I'd consider making it count down from 96:00

Couple of minor bugs I experienced: I filled up my crafting with items just to realize I had to sleep.  I click on the pillow with the items still selected (solution A and Reactive for example) and then they are gone when I wake up.  not back on the table but gone forever.  I'd expect them to be cleared before sleeping.   Other one is that loading up the crafter with Salt and then Water in the 1 and 2 slots respectively did not produce salt water for me but water and salt in the 1 and 2 slots respectively did produce salt water so I assume there's a minor bug there.

Didn't stop me from getting ending 1/2 though.  Love the little guy moving at the end.  Good game thanks for sharing!