What would you advise me to do? Please write back as soon as you can

Dear Pam,

Sorry that I haven’t written for ages, but I’ve been very busy studying. I’m writing because I need your advice about a problem I have.
My friends and I have decided to go away on holiday in the summer, but I don’t have enough money. I was wondering if you had any ideas about earning some extra cash. If I don’t save up enough money by August, I’ll have to go away with my parents instead. Can you think of anything that would help me to make some money quickly?
What would you advise me to do? Please write back as soon as you can.
Love,
Mary