13th Birthday HELP

Well i am having my birthday in a little while and i am very eager i tried looking for ideas on the internet but ive already had a scavenger hunt and a sleep over so im trying to go with something new i know want a party(guys and girls) and i know that theres gonna be at least 50 people(yikes)but
1 i dont know where to have it
2 i dont know what the entertainment is gonna be(games,pranks exce)
3 i dont know the time
4 i dont know whats gonna be the food
So can you help me out!!!!