For Pro Ana only: How can I lose 5-10 pounds in 20 days?

I need to come up with a plan, starting today, to help me lose weight before vacation. I'd like to lose 5-10 pounds by then and then start a healthier diet to lose 20 more pounds. This diet should consist of fasting, restricting, exercise, and anything else, I'm willing to do. I just need to lose as much weight as possible, and keep it off.