Just miserable

I’ve struggled with mental issues my whole life but now that I’m 18 it’s so much worse. I’m expected to be an adult even though I have no idea how. I’m in college and it’s hard enough but my mom keeps pestering me to get a job. I’m on so much medicine to keep me mentally stable that I’m exhausted all the time and barely have energy for college. She told me I don’t contribute at all to the household which really hurt to hear especially since I already feel like a burden to everyone. I don’t know what to do. I’m not doing well in school, I feel like I suck at everything, and I’m just straight up depressed which is making everything worse. Anyone else been through this and can tell me how they got through it?