I go long distance swimming when I am upset. It's very quite in the water and it gives me time to think and release my emotions at the same time.
go on the computer, listen to music, while im on msn having with my friends telling them about why im upset. or just in my room listening to music.
I like to listen to music by myself in my room If I'm just not in the mood for that, I'll go sit in the shower for ages under the running water