Please, don't hurt yourself. Easier said than done, I know. I was self-injuring for 13 years of my life, until I finally quit cold-turkey. It IS possible. Have you heard of the 15 minute rule? If not, PM me and I will type it up for you. Its VERY helpful.
Please check out this blog I typed up almost 2 years ago regarding self injury, it may help you find a way to express your own feelings
Also, here is a video that you might find helpful that I made:
http://www.youtube.com/watch?v=dyFenbMJSQw
I hope these resources help you. And again, please don't hurt yourself. In the end, these scars that remain on my arm are NOT worth it. Losing your life? Not an option. Stick around...there are so many amazing things to look forward to! But...you wont know what they are unless you stick around to find out.
Be safe and be well!