Have you ever tried a bootcamp?

I have been doing bootcamp for only 2 weeks and I have already lost 5 lbs. I now fit into a size 0 again! I love bootcamp because it has helped alot with my slef esteem and my weight I already look thinner but the workouts burn :) I went from 112 lbs. to 108 lbs. ! :) lol I'm only 5"3