18th Birthday&Prom In The Same Week

I have an issue my 18th birthday and junior prom are within the same week.I know that turning 18s a huge deal and I know that junior prom is kinda huge but not as big as senior prom. I`d love to do prom but I also want to have a party.I just need an idea of how to incorporate them both.I`ve already tried to think of having them the week after or week before and neither week work because of other birthday party plans.I had one idea of finding a place to rent out but I`m not sure.I need help,any ideas?