Hey please please hepl need best answers!!!!!please im desperate!?

ok well i asked questions on here and so none of them worked so just need a ideas for A HUGE! 13th birthday and yes it ha to b huge so i need ideas for food,drinks.activities,invitations,and other ideas that u can think of please pelase help it HAS 2 b HUGE! and its a girl boi party in mi backyard and if it shouldnt b in mi backyard should it b in mi house if so i need decorations for both of them please comment back because much help is needed!!! please please plase help!and im a girl so no like nintendo themed things and stuff like that also ummmmmmmmmmmmmm yea wut r party favors???????should i have them?????????wut should i wear?? can u pick out an outfit for me please??? please please im deseperate!!!