I started insanity today, and I've never worked out so hard in my life. I really want to stick with it. I can't wait for tomorrow!
Wow, I am starting insanity again today too! I'm going to be doing my workouts in the evening though. It's really intense but you will start to feel different as soon as tomorrow, maybe even today. When I started before, shakes were my best friend after a work out, you should really try them! Good luck!!