There is a TV show called gap year, or something to that effect, that is coming up. They follow kids around who are doing something interesting for the year between highschool and college. I think the OP wants us to come up with an idea so he can get on television. I say we support him! Make permies.com famous.
If I'm wrong about this being for TV, please forgive my imprudence. Here are some ideas, surely others have better.
Setting up a big keyline
swale through your neighborhood (or other neighborhood) would be interesting because you would go through tons of peoples different yards and dig the trench, meet them, explain it to them. They might even help you, and it would be good for their soil and drainage problems. A complex problem, with all the roads and roofs though.
Make a bunch of seed balls and do a ton of guerilla
gardening in detroit, a bad neighborhood where you're from, or the
lawn of an evil corporation that hates plants and stuff. That would be exciting, you might get in trouble, but you're under eighteen so you won't do time.
Set up a
compost and yard waste drive in your neighborhood. Get someone to
donate a shared garden space, and make a monster heap of compost there, with room to turn it. This would be mostly door to door stuff, in a truck. It would make a difference in the world but might not be very sexy.
There's some animal in your area that people like. Maybe martins (because you have mosquitos) or anything else. You build tons of animal housing, plant habitat plants, all over town to try to get their population up.
Just a few ideas, if you're trying to do your OWN thing, and not just go learn on a farm. Not that theres anything wrong with that.
