It has destroyed whatever hope I had for this life. Used to love daydreaming. It took that away from me. Fucking hate it.
The only thing that helps is mindfulness meditation. It sounds like some new age shit, but it does help. Disregarding the random feelings of pleasure you experience also helps, though I don't really know why. If I feel pleasurable, OCD kicks in almost all the time. I realize I enjoy playing a game - OCD kicks in, same with everything. It doesn't mean I don't enjoy things, but the very sensation of pleasure, that gentle warmth somewhere around your jaw and neck - for me it must be managed because that is the feeling of relief, the feeling I chase whenever my brain wants to perform a compulsion.
Other than that I have really no advice. I tried exposing myself to the thing I dread, literally puked from the overwhelming anxiety couple of times - doesn't really help, even if I do it for a long ass time.
Tried many, many different things, only those two make life somewhat less of a hell.