Make my cellulite go away!!?

I know a lot of people have asked this question, but how do I get rid of my cellulite?? I am 21 yrs old, I weigh around 110lbs, and I like my body. But I cant get rid of it on my thighs and backside! When I worked as a waitress, I was always on my feet, and I never had any. Now I have a desk job, and I sit down to a computer a lot, and it appeared! I try walking around at work as much as I can, I tried all the creams, I prolly cant afford the surgeries! I try walking after work every day, and I'm now joining a gym. What are the best exercises?? Please help!