What should I do? I'm pissed at Bill for refusing to help.
What did Bill refuse to help with? Why are you angry with him?
I'm a nice guy and I believe that a person should help a friend
You can't expect people to help you whenever you ask, they might have other things they need to do.  If you talk to your friend and ask him why he doesn't want to help he will respect you more instead of just getting mad at him.
I can't even imagine how much time I will have to wait with him, sorry I can't be patient.
It's important for you to know that you are not entitled to receive the assistance of other people whenever you want it. It's okay for you to ask for help, but you have to respect other people's time and choice to not help.