what should i do for my party?!

I think it's perfectly fine to not have alcohol at your party. I personally would take your two closest friends and go sky diving. It's an amazing experience and one that you'd remember forever as opposed to a drunken party. Maybe have a nice breakfast, go sky diving, then settle in to a couple rented movies and great food with cupcakes or cake.

Happy birthday and have fun!

Years from now all that drinking peer pressure won't matter and you'll look fondly back at the awesome sky-diving trip you took with your friends!

Well if they were real friends they would understand your circumstances and why you can't have alcohol and that at your party. Plus you don't even need alcohol to have a good time anyway. You could have a themed party like black and white or something, which makes it more fun. As long as you have a good selection of music, food and non-alcoholic drinks and make sure that your guests are having fun aswell as you, there shouldn't be a problem.
Also if you didn't want a party you could go paintballing or lazer quest which is fun and fairly cheap. You could maybe hire out a limo and go for a meal and be taken around in that.
Hope i helped & i hope you have a great birthday :D

my friend threw a pirate party for his 17th birthday. it was amazing. the house was decorated and there were brilliant pirate games. by the end of the night everyone was singing along to the pirate songs :D

check my sources for ideas

http://www.buccaneersandlobsters.com/for…

Mocktail and manicure party for a girlie party.

Skydiving FTW

take a few friends and go to a theme park...

its the safest