Variance and dreading the eventual downswing

[lawloser]

I have been running extremely hot in July. It scares the crap out of me b/c I know variance will even things out and I'm facing a major downswing soon. When most people run hot, they try to play as much as possible. I just don't know how much longer this can last and I'm basically dreading every session. I'm usually a 4.5ptBB/100 winner in 1-2 NL; this is over a big sample size. I have almost doubled that for July. Today I sat down to play and I think the start of my downswing occured. I lost to 3 two-outers after getting it all-in during the first 30 minutes of my session. What did I do, I just stopped playing because I believed that it was only the beginning. What do you guys do when it seems the downside of variance is upon you?