Fundraising for my trip?

I am going to Costa Rica next April and i need $1500 to go and i need 500 by Christmas, 500 By Feb., and 500 for April. I am in Junior High. I am going to Costa Rica with my grade for a missions trip. Please if you have any ideas please post them. I would love donations too! If you would like to donate me please post a comment as well and i will follow up!