Will it ever get better?

Dunno why I'm not posting this in my space 

Tw- I'm just scared. I'm in so much pain and no one will notice or take care of me. My leg is barely usable at this point, it hurts so bad to evenwalk, but I'm doing it because I don't have a choice. I know it's adrenaline. I was so mad about the pain I slammed my finger in the car door yesterday and it didn't hurt. It stilldoesn't, except of o touch it. The bone is bruised and I'm worry that with my concert on Friday I'll mess up blood flow permanently and risk loosing that section of my finger, and since it is my dominant hand, I won't be able to be a surgeon or a composer. 

My mom is being absolutely evil, as well as my sister and they make me feel like dirt. I never want to eat or do anything, right now I'm throwing out 99% of my possessions because I don't see a point. 

I feel bad talking to my boyfriend about how bad I'm feeling because it's like all the time, it's annoying. It isn't his job to take care of me, so I lie and say I'm fine as I'm packing my bag to leave. All I want is support, but yet I never ask. I can't just say I'm sad again because of the man who hurtme, or my mom is being a ***, I need to just wear a mask because it's not his job. 

I go to Sr and like sometimes people care most times I feel like a burden so I leave. 

At this rate, I'm scared I won't live very long. Not crisis but the fact that I'm always in pain and injured is not good for my heart, the adrenaline. And my friend said that when I'm older and I go to a dr they are going to be scared. Well so amI. I broke my wrist last year and didn't doanything, I broke my ankle atleast once, Sprained it multiple times (I was a gymnast it just does that because I sprained it like so many times as a kid), I've destroyed my hips and knees, so It grinds and cracks and my sciatic nerves hurt alot, I send my friend an audio of my knee cracking and she said it sounds like I'm cutting bones with scissors. I'm scared my body is damaged beyond repair, and I'm only 15 idk what to do. 

What do I do? Or more likely how the *** do I start sorting all of this out?