I hope your stress over reveals eases soon for you, especially since, as you say here, it has an adverse effect on your writing.

Like you, I find myself retreating into fanfiction sometimes when things are especially difficult for longer stretches (as opposed to sudden emergencies, when I'm not able to focus as well). I do love a good angsty hurt/comfort on those occasions, though sometimes, if I'm feeling particularly dark, I'll let the snakes in my brain do the writing, in which case, what's produced is typically very dark indeed.

For fluff, though, I almost always have to be in a happy, upbeat mood, or I somehow end up sliding into snark and angst instead. ;-)