Some help with a story..... PLEASE pleaese?

my story is about a girl (Kasey) and she has a bf (Jesse) and a bff (Tess) so kasey is a babysitter and she is supposed to go to a big party with her bf and her bff would be there but there are lots of babysitting customers on the day of the party and (she doesnt know what to do because she really wants to buy a prom dress with that money) <<<< i dont think this part is good, later jesse and kasey get in a fight and kasey loses a customer because she is doing a bad job because of stuff going on, what should the ending be??? will she go to the party or stay home with a bunch of toddlers and kids but get money, and also tell me if the part in the paretnthesis () is good or not and if its not what should i change it to, i apreciate your help!!! =D