I call up someone whom I really like and trust and talk an hour or so and always feel better. You have some good friends young man. Call one up and have a good long talk and be happy. Works for me ! It should for you !
Usually, I get in the fetal position and just cry like a little *!^@*.
Spending time and talking with my beloved ones.
Listening to music specially (Linkin Park) cheers me up as hell!
Try to get some sleep sometimes, it works! Sometimes you need to get turned off of everything! After while when i wake up, everything just got better!
Playing drum, this instrument is full creativity and peace for me! I get into music, matching notes, mixing beats, tuning songs and recording drum and i suddenly find myself "hey was i feeling out of mood" ? Well let it who cares now!
Playing soccer, a ball and a bright green pitch can change my mood easily!
Going to bars, beaches ect . . .