Feeling Depressed and Stuck at School

what do you all do when you’re depressed, especially like positive things? i’m feeling pretty depressed right now, like for basically no reason, and i’m at school, so that’s a problem. it’s like my mind wants me to stay depressed, maybe even to get more upset. i just feel so stuck. and i don’t think i can go home early. i feel very antisocial and stuff too. i don’t know what to do. logically especially, i would love to feel fine, even happy right now. i don’t even have any real reasons to be depressed specifically right now, at least i don’t think there’s anything specific that’s really the cause of my depression right now. i almost wish i was having a fucking panic attack because then i would at least kinda know what to do (take my panic med)… i’m not feeling like i wanna self-harm or anything, i’m not even really having much negative self-talk or anything, my thoughts are kinda sparse and it’s mostly just basically things like “i feel bad why do i feel bad” etc. over and over again. i just wanna go home.