Why,
A word of warning: I did that exact some thing. I thought about cutting, laid a razor on my arm, 'tried' to cut for weeks before I actually did it for the first time. Now, one month later, I cut every day.
DON'T START. It's only a matter of time before you 'try it', and it's hard, so, so hard to stop.
There are better ways to cope. Yes, cutting has it's appeal. If it didn't, people wouldn't do it as much as they do. But it's not worth it.
Please, stop before you start. Prevent a huge problem that just drags you down lower.
(((((((((((xXWHYXx)))))))))))))