I can't/don't go see horror movies at all. I still have images from when I was 10 and 11 (1959/60) and saw a really stupid B movie, not even a good, known one.

I think the raw feelings/impressions will fade. I'd find something I enjoy, a good book or TV show/movie to "replace" the immediate images with. I know I always do better if I get out and around people, doing chores or having a "purpose" -- maybe do a museum, library, go to the cleaners or grocery store, some day-to-day "normal" task? I have a good friend's birthday coming up and spent a lot of time last night thinking of a "unique" gift and tracking it down. Think in the future when I "need" distraction I'll start working on my Christmas shopping.