I've got OCD and I've done CBT, ERP etc. As others have alluded to, you need to realise the work is never done. Recently I've found it more active, but this time - having recently read The Maps we Carry by Rose Cartwright, who was something of a poster-woman for OCD after her first book, Pure - I've tried to go deeper. CBT etc feel like prophylactics. They're certainly useful, but they don't address deeper things, such as learning to be as you are, to observe and integrate your anxiety etc.

This set me off on a harder path of more abstract therapy (I'm working with an integrative therapist who practices across IFS, Jungian etc), meditation etc. The book the untethered soul, by Michael Singer helped a lot to put everything into perspective - the therapy, the anxiety, the day to day - in a way that nothing else had really achieved for me.

Also, a key conclusion of Cartwrights is that individualised change/treatment is important, but it's worthless without community. I think she's deeply, profoundly right.