Hmm, I have not had to wrestle with that in a really long time, so personal advice will be hard to dredge up, BUT it would still be related to the advice I would give anyone which is this: I know this doesn't always make it easier when trauma or anxiety rears its head, but you just have to keep remembering that this is something that you enjoy and that, if applicable, your play partner/s also enjoy. This is something you have sought out. You are putting net happiness and fulfillment into the world, and even if maybe you're participating in a specific kink that can be tricky for you with those sorts of triggers, you're still doing it on your own terms. At the end of the day, you were smart and brave enough to deconstruct your kinks enough to allow yourself to feel them, and you should give yourself credit for that, not kick yourself for it.

Again, this all may be tough to remember when you're in the thick of it, but just try and remember what other kinksters that you respect would tell you here, and what you'd tell them.