Stephany, I will ditto that last reply. There are a lot of folk using the internet that may just take that email for granted. Please, Please, Please be careful hun.
When I was your age, I trawled around cafes, chip shops etc asking for jobs. Even some Shoe Shops take on part time workers for certain weekend shifts so it may be worth giving that a shot.
I pay a young lady (she is 13/14) to come into my home to play games with my little girl whilst I work (if I have to bring stuff home from work). She does not exactly babysit, but occupies my little girl whilst I get on with things. I pay �3.50 an hour for this, treat her to her a takeaway and pay her taxi home.
Maybe something like this might suit you.
Take Care and Good Luck.
Katie. x