Take breaks from the direct work and give yourself a treat!!!
You are doing great, believe it or not. Being able to talk about it helps wash it off (diffuse it) too. Can you take a walk or do something else physical to give your brain a time out to process? Too much "direct attack" gets old and keeps the dirty feeling up front. Affirmations on your mirrors are a nice sublte way to feed new thoughts into your mainstream. Something like: "I am clean, healthy, healing". Time is on your side. Keep breathing. You can do this.