how do you stop

Hello, I just want to ask how to stop. I though I'm getting better, I don't know what triggered it but I started it again. I was clean for almost 3 months but now I started doing it again. I don't really know what my triggers are or why I really do it. My friends and relatives already talked to me about this and it actually got better. But even though they constantly check up on me and stuff I still do it. Maybe it really is a me problem.