I don't know what to do at my birthday party?!

Ok so i invited my whole cheer team...34 people but like more than half of them cant come because they are going out of town for a cheer comp and another problem is there is ages like 6-14 that i invited and only 1 boy is coming. So i dont know how many people are actually going to show up i know two of my friends are that are the same age as me and the one 9year old boy, So like any ideas on what we could do? By the way im turning 13 and im a girl and its gonna be at my house. Thanks.