school and mental health

I’m not really sure how else to explain it, but school is making me really depressed. i’m studying music business and although this is exactly what i wanna do with my life school is just making me lose interest in a lot of things. i haven’t been happy ever since school started. everything makes me wanna give up. i’m oversleeping. i don’t eat anymore. i have no motivation to do good in any of my classes. i’m already in my second year and i feel like as the days go by my will to do anything just dies out little by little. i really wanna drop out but i don’t know what i’d do with my career if i do. has anyone gone through this before and has any advice to give?