I just downloaded the newest version and i played the game before, i completed it. I click continue expecting that my progress is still there but it doesnt continue helppp

Yes, it happens to everyone from version 1.3. The saves are stored in another file. You can still transfer your old save in the new file but I wouldn't recommend it. A lot of new content can not trigger because you're already too far. Best way is to do it all again. If that's too much grind, just wait for several versions so it would be even more worthy to start from scratch.