I just need some advice...?

okay so on the weekend of november 15,16 my dance team has a dance competition downtown. and we need to stay in a hotel. there is also a convention and competition. my parents are strongly concidering me not go and do the cles because its a lot of money. (its gonna be a 1000 dollar weekend) but i really NEED to do the convention part of it. theyll let me compete just not do the cles which i really wanna do. so i need some help. do i try to help my parents out and get some money? or do i just not do it? LAST THING ON MY LIST. i just need some help. (im 13 so can't really get a job) so plz help me out and give me some advice. POR FAVOR!