i feel the exact same way. lately i choose to do things i enjoy, like art work, and then i feel proud of myself for actually doing something worthwhile. sometimes that makes me think "well, if i can do that, then i can do my work, too". i have an unbelievable amount of work and studying to do and a ton of huge tests approaching, and school is just wearing me out, and giving me anxiety, im almost afraid to even go there. i feel like i just get too overwhelmed by it all. im so mentally dull and i cant concentrate. but i think ill make it through. i think you will too. goodluck.