I dont have any friends

They all use me. It seems like it, they use me for my car, and everything. they don’t like me. My “best friend” dont even seems like she likes me. She always leaves me in the halllway for her other friends. She tells them more stuff than she tells me, but yet, she’s suppose to be my best friend. We were suppose to ride to prom together but she changed plans and is going with her other friends. I just don’t see why we say were best friends when were really not. I feel like i cant tell her anything because she will judge me. My other 3 friends just use me for rides and stuff and everything in my life is just fucked up. the way i look, the way i act. I feel like if i kill myself, there will be one less everything, and there will. im just depressed and tired.