I'm tired and I don't know what to do

I'm (17m) grew up without a father figure was always setting it aside and kept saying to myself me and my mom can do it but every year I feel like a part of me is disappearing the one that makes me Push forward made me think of myself that I will not give up I need to do good in school but this past 3 years in school is slowly breaking me. I was given a lot of tasks in group activities since my groupmates would not do anything and especially for our research in school they made me the leader of the research even though I don't know what the fuck am I doing all the time I just pass my activities and home work ass long as I get a passing score I'm fine. But when it comes to big responsibilities like being a leader it keeps destroying me they make me do all the work and made me correct all wrong data they sent to me heck I don't even know how to right an essay and I'm fucking 17. All these discrimination I feel like my mental health is rotting I can't take it and I want to give up