I have to agree with both the posts before me. You are over training if you are not using steroids, the routines you see in the muscle mags are geared toward users. Also, if you are a beginner you will overwhelm your bodies ability to recuperate and therefore not get the results you are looking for. Why so many different movements per body part on the same workout, really 5 movements for delts.
I suggest doing your splits as a system meaning antagonistic muscle groups train on the same day, (chest/lats, bicep/triceps) you will get better muscle recruitment this way and better results. Even better do them as supersets, its what I have my clients do. (bench/pulldown, etc.) Pick 2 -3 movements per body part and do 3 -4 sets, I like 8-10, 6-8, 4-6, 20.
BTW throughout the leg extensions, this is an open chain exercise, not very effective and extremely detrimental to your knees. Stay with squats, step-ups, lunges, deadlifts, good mornings, and some jumping drills for your leg work. Train strength first (squats) and power second (bench jumps).
Good luck.Personal Trainer Los Angeles - Hollywood