Moody without a Motive

so i'm feeling kinda down right now and i have no idea why. maybe it's cause summer is coming to an end or because i miss san fran and being with everyone 24/7, but to be honest i really am not so sure why i'm feeling down. soccer tryouts went well today (coach didn't even show up!) and i spent almost all the rest of the day with friends from san fran so i have no idea why i'm sitting here feeling sad at the end of it all. then again, i get wierd at night (it's true, i get really wierd - often it's angry/agitated or depressed or loopy) and i know that i have those good old teenager mood swings every so often which are just so much fun. i think i'm gonna go to bed, a good night's sleep always seems to make me feel better - there's nothing like a fresh, brand new day.