I hate my body :(

Hi I (f, 17) don’t know if I have body dysmorphia or not. But I really truly hate my body, I’ve been crying the last three days straight I think because I find myself so truly ugly, I hate everything about my body. I’m really thin, but what I hate most is the size of my chest. Because there’s literally nothing there, it makes me so upset every time I look at myself in the mirror. To the point I don’t even wanna eat unless it’s necessary because why eat when my body aren’t even going to get pretty from it anyway? I did gain weight and was almost normal weight but my breasts didn’t grow at all and if they did I still couldn’t even fill an a-cup. So now I don’t even bother trying. But I’m so upset. I’ve been in my bed for days because I truly don’t see the point in going outside and living when I’m so truly ugly. As I’m only 17 I can’t have cosmetic surgery done. In a year I can but I don’t like the idea of implants and I don’t have enough fat for a fat transfer. I can’t afford it either and I doubt my parents would pay. But I really hate my body. It’s like it physically hurts because I’m so uncomfortable and insecure in it :(