I think my game's bugged. I can't go to the town hall. I've already talked to the courage trainer for the first time and I'm on day 15 but I've never been able to go to townhall
If you've spent time with Evelyn and been sent off to meet Thaddeus, but the town hall does not appear as a place your can click on the town map, something has indeed gone wrong. If the work site where Aldred hangs out is not on the map either, then it sounds like the game thinks you haven't had that meeting with Evelyn yet. Just in case, try spending time with her at home in the afternoon and see if she sends you to town hall. Maybe you made a mistake and loaded a save from before you had the meeting, or maybe the game just got confused.
Once you make absolutely certain that the game is not locking the location because it thinks you haven't had that meeting yet, there are two other possibilities.
1. your save game could be borked. Try starting a new game and see if the problem persists.
2. the game itself could be corrupt, especially if you installed the game on top of a previous version. your saves are stored elsewhere, so it doesn't hurt to delete the game folder and reinstall.