Well.

I often feel like i need to cut, or burn. Possibly even jump from something that could injure. But i don't know why and i sometimes do. Sometimes i can't feel anything so i just wanna do it again to feel something to feel some rush, like the rush you get while riding a big rollercoaster. I don't know, maybe my life's boring or something. I can control it but every time i wanna do it i don't because i know it's wrong. But if i do then i feel ashamed and i just do it again and i feel more ashamed and i just feel like i've hurt everyone that i love. I don't know. It's a weird cycle. Maybe i'm just crazy like people say.

If you like doing stuff for a rush, have you tried an extreme sport! That is also safe.
Sky diving, Bungie jumping, water sports? All safe but big time rush.

Or if these are not a rush try running your be surprised how much energy you have afterwards

This rush that you are talking about are endorphins being released. All addictions are sought so that the person can improve their mood by releasing endorphins. So you are probably just trying to improve your mood. Do you have a therapist?

no not crazy. Because other wise I would have to say I'm crazy too.
It's hard to not give in, but it makes us all feel alive. But if you don't feel alive, and you have a pulse, doesn't that make you alive?