Ok i'm sorry if this is a bit long. I'm 15 and male.
Problems:
1. I am/was (i'll come to this later) really good friends with this girl and i really like her but she goes out with one of my best friends. He's been annoying me for a while but i don't know if thats my perception because i'm jealous or not.
2. I believe I have an eating disorder because i start to feel really ill when eating a lot of the time. My BMI is 16.4. People say i'm thin but i honestly don't think I am. My arms are but my legs and stomach aren't.
3. I tell everything to that girl i'm friends with and moan about things endlessly, so much that now she's fed up with it. She has problems of her own to deal with and all i do is moan to her. Tbh i'm a bit suprised shes put up with me for so long. She said that I need help and when I said I didn't think that would help, she stopped talking to me (this happened today btw). I will get help but i want to see what you guys say first.
4. I promised my friend that I wouldn't cut myself after I did once and told her, I kept that promise for a while until we fell out and now i've carved "hate" into my leg (its barely recognisable as hate though) and I wanted to do more but i stopped myself.
5. I really want to make things right with my friend but i don't know how because every time i try to i **** things up more.
6. My parents are always shouting at me for little things and my mums hit me a couple of times.
7. My dad is better but he's hardly ever here due to working abroad a lot.
8. I believe that I may have borderline personality disorder because i have all the symptoms and have taken a lot of online tests which have agreed.

I'm not sure what i want you to say, just any advice or comments welcome.