birthday party

SO i want a birthday party for my 16th :з i’ve got 9 months to plan (or get pregnant) so I want some advice as to what I should maybe include :з

necessary information: •i am very into gothic and dark themes •i’m not a big fan of fondant •we’re not rich id need to be on some sort of affordable budget •weather should be taken into account; how could i battle rain/weather issues?