Hey Robb1e_g. You post here really resonated with me and I'm not sure if you even visit these forums anymore but if you do I'd love to hear more about your journey and how you've been doing since. I posted here recently about my 17 month journey thus far.
There are days and even weeks on end where I think PAWS is nearly gone and then I will get hit with another wave; often after I make a post or statement on how good I've been doing. It's been a very perplexing process and sometimes I get despondent about how I'm still having waves nearly a year and a half later.
I think the deepest fear of every PAWS sufferer is that we are permanently cracked, and it's hard to wrestle with those fears during a wave. I think there is a lot of truth in what you said about being mindful of your thoughts and taking every thought captive as in Romans 12:2; it sounds trite but feelings are unreliable and they can rule over us if we let them.
I too am a believer in the Gospel and I often pray God would deliver me fully from this trial, or at least lead me through it more speedily!