Why isn't my AT&T blackjack working?

Okay, I have dropped my blackjack quite a few times before,and I just picked it up and put the battery and the back on and went on with my life. However, the other night it was on my blanket (and I didn't know) so I pulled my blanket over just a little bit and CSHH(my phone fell)! I looked at it and was disappointed but I picked it up uming that when I reembled it, I could just turn it on and everything would be ok. I was extra wrong, I tried turning it on, but it wouldn't turn on. I've tried charging it and only the little light came on. This is so stressful. CAN SOMEBODY PLEASE HELP ME???? :/