I agree with Kiandra3, sometimes I feel like I'm seeking people's permission to SI, to lessen my guilt after having done it. So I guess I'm just saying that I understand how it feels to have it kind of take over every aspect of your life - when it's the only thing you think about, but doing it only makes you think about it more - it's a vicious cycle.
But I do want to give you some hope. I've had moments where I thought my live was just not going to be worth living anymore if I had to stop SI'ing. On one of the first nights that I was serious about quitting, I really had bad suicidal thoughts. And although I haven't quit yet and I still struggle, I feel I've pretty much gotten past that point now. There are actually days when I barely think of SI, and sometimes I'm shocked that a whole week or so has passed and I haven't harmed myself. So even though that may be impossible for you to imagine right now, I promise that someday you'll get there.
Thank you for being so open and posting here. It's really admirable that you want to get better and you're fighting this thing, even though it's really hard to do. We're behind you, many of us have been in your shoes, and we want to help you get through this.
Please take care