Your roommates may want to make you miserable so that you move out.
You need to speak with your RA & with the University Housing Office or Director. See if you can change rooms.
You are not “insane and being a bad roommate”, but you should not leave your clothes on the bathroom floor even if not feeling well. Basic hygiene & good manners should be adhered to by all parties in this three person roommate arrangement. No excuses.
Also, overeating at a meal is impolite. Consider getting an on-campus job so that you can afford an adequate number of meals. Fasting is likely to exacerbate your moodiness & depression.
I think that all three share some fault in this roommate relationship. Better to move out, than to flunk out.