I'm rich and bored?

I am 13 and have all this money and don't know what to do with it. I take my friends on jet rides, take them to amusment parks and travel the world along with donating to charitys. But I would like to figure somthing out besides watching a huge t.v. playing x-box 360, and getting fat! I dont want to get fat I like my chubby self. But what can I do to help the comunity around me with my money? Or something to spend it on! Please help!