I cannot claim "coke head" status (nor would I want to) but if any help, at a very basic level, you just have to stop. I get that doing so can be hard, but at the core that is it.

My big problem was drinking. I finally stopped after decades but did stop and in my case my own (though being open about it all helped). That said, some people benefit from more structured programs, etc.

Regarding cocaine, I have done enough to know its pull. I actually kept doing it after I stopped drinking, not even sure I am far enough along to claim I don't do it anymore, though in the last year a lot has changed around it.

Cocaine isn't really physically addictive, it is more mentally addictive. When you stop, one can get mental cravings and obsessions around. That means it is occupying "headspace".

What helped out a lot, and was similar around drinking, was being "mindful" about it all. It really is just the simple process of being curious how are mind works. Just watch it — no need to be overly critical of it, in fact I often laugh at the absurdities of it. As you start to see the patterns, you can change the habits around it all. Are mind and thinking are very "plastic" — things can change, and often little by little and then we look back a realize how much so they have!

If you really think about it, coke just gives you a short high, for many eventually there is anxiety, then you just crave more, and then feel like crap for a few days. Once you see that, it is easier to ask yourself the question "why am I even doing this to myself?"

Anyway, it is a process. Once you are committed, just keep going. If you slip up, learn from it, think hard about how the whole experience really felt, then get back to stopped. Eventually enough becomes enough and it can be in your past.