hard to make towel into parachute

I always wanted to skydive but cant afford it so today I tried my own version but it didnt work. what I did was I got the largest beach towel I could find and then jumped out my apartment window (I live on the second floor). I thought I would float down slowly using the towel as a parachute. That WAS NOT what happened -- instead I dropped like a rock. I am ok only b/c a homeless guy broke my fall.

DONT TRY THIS AT HOME!!!!

Geronimo