Hello HD: This probably isn't going to be a real helpful suggestion. But (without going into detail) what has made the biggest difference for me is simply no longer being in a position to do things I once did. So much of this sort of thing, in my experience at least, is tied to our surroundings & the circumstances of our day-to-day lives. They become triggers that send us back around on our own personal merry-go-rounds, so to speak. So if you change your surroundings & daily-life circumstances, it makes it easier to no longer do the things you did that you wish to no longer do... if that makes any sense.

I don't know where you live, or what your day-to-day life circumstances are, of course. So it's difficult to be specific. But what I would recommend, based on my own personal experience, is to try to figure out some way(s) of changing things so that you simply no longer can conveniently do the things you no longer wish to do. In my experience, at least, it has been surprising just how easy it was to make these sorts of changes when the circumstances of my day-to-day life changed.

Now that doesn't mean you won't still feel the urges from time-to-time & still have whatever other mental health struggles you deal with. And so, in conjunction with making changes in your surroundings & circumstances, you also have to address the underlying anxiety & perhaps fear that caused you to begin doing these things to begin with. That perhaps means therapy or psych med's or some sort of self-help program or routine. I'm no longer on any psych med's nor do I see a therapist. Neither was ever of any real help to me. Instead I do about an hour-&-a-half to 2 hours of yoga & meditation daily. I also walk our dog a couple of times a day. And I cook & clean... that sort of thing. Oh... & I spend a bit of time here on PC. It all keeps me occupied & helps to keep my mind off of things I'd rather not dwell on.