raise money for my flight

Please help me raise £195 for my flight back home which I got on the wrong date and its costing me £195 to change otherwise im stuck in...

 Please help me raise £195 for my flight back home which I got on the wrong date and its costing me £195 to change otherwise im stuck in america alone for a month.

It was supposed to be a trip of a lifetime which ive been saving for but now cause I had a small mistake its costing me an extra £195 which I can really afford, especailly when all airlines offer a 24 hour time period to change these sort of mistakes but with STA travel theres nothing they can do about it.

every pound helps!

Thanks