One time while soloing in a 2-33 glider on downwind, I found myself with no place to land because the field was full, I didn't want to try to land over them, incase they started to take off. So I waited a bit, until one of the tow planes started to take off with another glider. I turned onto base and noticed I was a little low so I pushed in the spoilers and cut the base leg and started directly for the field. The trees started coming up fast. Now this was only my second solo flight, but my training told me not to try and stretch the glide by pulling up, because I would just land right in the trees, so I dove at the trees, bringing my speed up to about 75 kts. Just at the last second, I pulled back on the stick leveling off at tree top level until I cleared the trees and settled onto the field, to roll to a stop just at the beginning of the field. I was sweat'n bullets, when a tow pilot came up to me and said, "thanks for landing short, now I don't have to pull you back to take off again."