I've fallen down some kind of well, please help.

I was camping with a group of Bear Scouts and I went off to take a pee and I found some kind of abandoned well or something. I stood on the wooden cover part and it broke and I fell into this hole or pit. I think I may hvve broken my ankle, it really, really hurts. It's dark down here. I really need to get out of here. I'm supposed to be tking care of these kids. I was drinking pretty heavily earlier but the fall sobered me up. My ankle looks like it's bent funny. There's some water down here, although honestly I think it might be urine. Luckily I have a cellphone with a web browser in it - please help. I'll do whatever you say.