I think maybe you should take a trip or something, go somewhere new. It sounds cliché, but I think if you went somewhere you've always wanted to go and really enjoyed yourself there then it could lift your spirits a bit and this new environment could inspire you. There are lots of different cultures around the world and maybe seeing them and having new experiences could cure your art block. And if you don't have the time or money then you don't even have to go far, just try and go somewhere new, I think it could really help.

Ooooorrr, you could try looking back over old drawings/paintings/etc. which you're really proud of and think of what inspired you to do those and the memories you get from them, maybe that could help remind you of why you loved art in the first place and push this new bad feeling you have out?

I know how you feel having art block, I really hate it. Unfortunately travelling isn't really an option for me yet, so inspiration is hard to find still, which sucks when you're doing a course and you have deadlines lol.