Whats wrong with me..please help?

a week ago i started an intense workout plan,well basically i wrote down all the exercises possible do do with and with out weights and i write down my reps then the next day i do all the exercises and try as hard as i can to improve my reps,iv been doing this for a week now and i also been dieting im not fat im a skinny lean guy im just in taking lots of protein now, anyways today i woke up really fatigued and i could barely make 20 push-ups. how long will it take my body to recoup and am i going to hard on my body??