Stressed by everyone lately

Started first month of junior year boy it’s so much work, im mentally and physically exhausted. I feel so lost in every aspect.

I feel behind in my classes already, got a 55 on my first chem test and I’ve been going to all the extra helps but it’s just so hard I don’t understand it :(, my coach is a literal bitch and everyday is on my ass and saying shit to me, my parents have their good and bad days, no idea what I wanna do or where I wanna go for college, no interest in having a love life, all my friendships are so questionable. Idk who’s real or not. Like a lot of them treat me like dirt. I have nobody to rant to cuz everyone in everything been giving me so much shit for no reason and I’m mind fucked and all alone :(