Hey... I’m new

Hi, I'm pretty new to this whole thing. Well um I should probably start off by saying that I had a problem, with self harm. It started around 4 1/2 years ago, I had a long stretch of just doing it. I finally realized my problem and put an end to it 2 years ago. I was clean and happy for almost 1 3/4 years. But with recent events going on in my life, I relapsed and had started doing it again. I had thought that I would just do it for a little while until this whole thing passed and nobody would know. But then I met this girl, she said that she had been having the same problem. I told her that I used to do it, but not that I was at the time. A week later she figured it out, that I was still doing it. I didn't want to stress her out or hurt her, so I tried so hard to stop. She made me promise to tell her when I was thinking or wanted to do it, then more recently she swore that she would do it as well any time I did even through my pleas for her not to. Literally on my knees begging. Now it's been 2 1/2 weeks clean, but it's been so hard. I keep waking up with the urge, and yesterday I was doing the lawn and accidentally got a cut on the top of my wrist that really made me wanna do it again? I'm kinda nervous about do this and talking to people about it, it's always been "my problem" yk? But I think I will feel better about it once I do it. And I think it would be good to have a support group because I'm really really worried about going back again.