So overwhelmed

I...I...I don't know what to do. I'm working on a final for school and I'm just not sure how to write it. I can't stop overthinking about it, about my weight, about life, etc. Then my mind is all over the place because I feel my boyfriend won't make sacrifices because his boss is a jerk. His boss won't hire anyone else, so the boyfriend is the only employee and he works him basically 7 days a week, sunrise to just about sunset. His boss isn't even on the job to help him. I've asked the boyfriend to talk to him about getting a schedule so he can help me at the gym and other things. Well, his boss wants him to take care of work first and basiyhe gets out when things are done. Which can be 5 to 7 at night and now the boyfriend says because of his job, he may not want to do the gym. I have made so many sacrifices for people my whole life, I don't understand why no one will for me. What's so wrong with me? What have I done wrong? So, my mind is all over the place. Then people keep asking why I'm in my first job due to having to drive an hour to and from work and then driving a kid around. It's like I can't do something I like. I can't focus on school or losing weight because everyone and everything is getting to me. I can't leave to go somewhere because bills and the way the world is. I have tried to speak my mind and I really feel like I'm not heard or anything. I just...I just can't handle it anymore. I just want to be in a different life and forget about things. I'm done school in October and I'm terrified I'm not going to make it because everything and everyone in my life. I work 2 jobs, school full time, and help on a team through the fire department. I'm also working on my mental health and weight. I'm trying to make everyone and myself happy, but I seriously feel I'm failing. I can't handle this. I don't know what to do or where to go. 😭😭😭😭😭😭