Alright, Let's say I've got a problem, I can't stop doing somthing I don't want to do (This has nothing to do with drugs!)
If I told you guys I'd be a laughing stock, but is there a spell that will stop it?
Firstly blackrobes I would say that is a little judgemental, without knowing the issue to assume yours is harder, even if it actually turns out to be so.
Secondly magick is not a quick fix all, it can't just make you stop doing something like that it does still require effort on your behalf however there are some to help increase your will power, now if you don't want to tell everyone here I fully understand that and I would recommend writing your own spell, it would have more effect and be custom made to your situation.
sometimes you have to get to the root of a problem. find out what factors make you do this. it could be something bothering you and the only way of dealing with it is to do the thing you are doing. its very common in eating disorders, phobias, drinking problems etc. you may not even be aware that this is your way of dealing it. i agree with the people above that magic can't fix all and maybe the best way of dealing with it is to talk to someone. even if its just a friend. trust me,it does work.
I almost cant believe no one has suggested this yet:
Try to bind yourself, use a binding ritual to help you stop doing whatever it is you are doing. that is their entire purpose, If you need one google it, I can give you one if you want but look over the internet first.
Hope this helped