Thank you so much for taking the time to play! If you don't mind me asking (i think i know but curious to hear) what did you find most frustrating about the difficulty around day 4?
For me, the enemy have healers which stomps all of my units on day 4, and my units are not strong enough to fight back, even with traps. I'd say my units stats needs some tweaking when choosing which units to take at the start of the round.