fly home to real family for summer

Hi to whoever may read this. My name is Alanna and as a 13 year old girl living in rainy Ireland. I have booked a holiday to England with my 18 year old sister but neither of us have much money! and if you can remember back to being my age i'm sure all you wanted was to go on your first holiday and have enough money to maybe buy a few nice things while your there. As a thirteen year old its very hard to get money as you cant get any sort of job and if your parents dont have much money your kind of screwed. So if anyones willing to help a young girl out anything would be much appreciated! Thanks