If something bad happened to you during the day, how do you forget about it so you can sleep/relax?

I usually take a very hot soak in the tub for about 45 minutes to an hour. I darken the room, have only candles lit, I put lavendar oil or rose attar in the water, and then I keep adding hot and cold, and I soak until it is a question as to whether or not I will be too woozy to get out. By the time I get out I am as red as a lobster, woozy, and all I can do is flop onto my towel on the bed and let the fan run on me to cool me off.

It's an exercise in deep relaxation, and because of the heat and the wooziness your concentration is on immediate sensations and preventing yourself from getting heat stroke.