Hey! Start with small changes like eating clean natural foods and getting just 30 min of exercise a day; that will start you on your way!
Not sure if you have ever heard of Beachbody (they do the 21 day fix among other programs). I'm a Beachbody Coach and offer free personal coaching when you do a program. People get great results! Check out www.thefitnessmovement.ca for more info.