have totally wondered the same thing myself, you're not alone! things friends have recommended to me when I get in that headspace: 1. do something to make yourself feel small 2. do something that actually feels fun for you (this is the hardest for me lol) 3. GO OUTSIDE. can't overstate how much of a difference it makes for my studies when i allow myself a couple hours just doing nothing, especially if it's in the sunshine. good luck studying!

Feel you on the low points, thanks for sharing, it's heartening and motivating to see people who are struggling show that kind of positive mental attitude!