I have two spells but no idea how to use them. Pressing 1-5, space or Num 1-5 does nothing. Also, I can put on a hat with H but no idea what that's for either. I tried it on another browser but go the same result.
Ah, okay. Here's the problem. You didn't mention the need to get a Grimoire for spells and that there is no key for the locked doors.