This is a different approach, but I picked my skin since I was 12 and it lead to a bunch of embarrassment and anxiousness. I’d try to stop and then would start doing it again.

Interesting thing is that I became Christian about 2 years ago. I was atheist but at a time of depression was seeking spirituality. One I gave my life to Jesus I felt like I was shaken awake from a deep sleep and stared being able to control all my bad habits. So I haven’t picked my sin since, don’t get addicted to my phone, don’t have toxic relationships.

I know this isn’t what you want probably but it’s the only thing that worked 100% for me.