Don't be intimidated by any exercise in this workout. Maybe you can't do the Donkey Kick Burpee or the Dive Bomber Push up the way I do them, but that doesn't mean that you should skip those exercises or the entire workout. Go through the links in the workout breakdown and check out the breakdown of each exercise and the easier modifications that I show in the videos. Everyone has to start somewhere and I can guarantee you that by doing the easier modifications at first is going to help a lot. You don't have to stick with the modification for the entire set. If you can do at least one rep the hard way and then switch to the easier modification that's fine too. Every little improvement counts as a big step, so be patient and keep going.