Insanity Fail

I've come to the sad conclusion that I'm too out of shape/too weak to effectively complete Insanity right now. They really drill the idea that you're supposed to keep proper form, and I can barely even make my body contort to proper form, much less do the moves enough times to do much good. I'm going to try to look on the bright side of this - at least I'm realizing I'm disgustingly out of shape before my weight gets TOO out of control. Once I've lost some weight and gotten my endurance up a little, hopefully I can revisit the idea of Insanity.  This is very frustrating.