if u are a beginner u are not gonna see results right away my friend. was rome built in a day. NOO!! relax, it will come

You can also try increasing your calories. I wasn't seeing any gains with what the calorie calculator said I should be taking in until I added an additional 300-500 calories/day. You should also stop killing yourself with cardio (Insanity is designed for burning calories - not good if you're trying to add size). Yes, you DO want to do some cardio to keep in good cardiovascular health so your system gets nutrients to your muscles properly, and you can keep up with the workouts without getting sick, but you don't want to burn 1000 calories/hour doing cardio, you want those calories/protein going towards building muscle. Like Jim recommends - 20-30 minutes of HIIT, or 30-60 minutes of your favorite recreational activity - more than that and you're burning calories that should go towards building muscle.

Active rest days are critical, as well as a 15 minute fast pump workout each day aside from the real 1-2 hour workout. Hiking steep trails on my rest days have added to the already explosive abdominal muscle growth from the workouts. A 15 minute workout can just consist of light weights done slowly with perfect form, 3 sets of 3 movements; such as barbell curl, bench press, squat, etc. for 10-20 reps at a fairly easy weight to do in that rep range.