Oh dear, oh dear, boys, I thought that since none of you were 13 year old girls that you'd be able to get along.
Mr. Cambiogris, nice to meet you, even though we've both been here a while, I've never heard of you.
OP; Write a short story or a comic (if you're creative), go for a walk/travel somewhere you haven't been in a while, fix any friendship problems, see family who you've not seen in years, volunteer (makes you feel good about yourself & you can give something back), study, find a job, make a video game, complete all the achievements on any 360 game, make a house for ants to live in, take some pictures, play silly flash games, discover the chans, cloud watch, train spot, watch every movie on imdb in alphabetical order, make a website, go buy something to eat, make shapes out of chocolate, discover your hidden talent, have love, sleep, or listen to every single song on your computer. :D
That should take some time up.