What to do on my sixteenth birthday?

i want to have a 16th birthday party with about 30 friends or less but i dont know any ideas to do. my birthday is on july 15 & i want to have it on the saturday which is the 16th. my mom is suggesting little kid parties. i want to do it at home and probably in the back yard but idk what ideas to do . PLEASE HELP AND I WOULD GLADLY THINK ABOUT WHAT YOU SAY:)