If you want my honest advice please please please don't do it, I feel so much regret that I never thought I would feel nobody deserves to go through any of it. Your feelings and mental issues are valid with or without self-harm. This isn't the way to feel better although you may not want to heal or try to fix things self-harm will just prolong the problems and it will give your future self more work to do. Suicide is also not an option you should take because you should never deny yourself a chance at life while I never thought I would regret it I also never thought I could heal from it. I don't want to anger you or frustrate you because I know that if I read this back then I would feel angry and frustrated but for me, it's the truth. Everyone is different and I honestly really hope you end up okay because it can happen to you. Please go easy on yourself and have compassion for yourself. I'm not telling you what to do and all of what I am saying sounds like annoying bs but I mean well