im almost 15 and i kinda know what im doing but at the same time i don't..

so far i think im hanging out with my 6 or 7 closest friends like having a birthday dinner and then after that ill have the rest of my friends come over too and have a party at my house. but i dont have any idea what to do at the party..

so first I'm going to have my closest friends come to my birthday dinner and then after that come back to the house and have my party. and i have a big house so there is more room to work with

so any ideas for the party part?