If you training hard enough, no way will you be able to train legs 3 times a day. I need at least 3 - 4 days rest on big muscle groups, legs, chest and back.

For newbies I suggest an Upper body, lower body, upper body split. So training 3 times a week. Each workout should be tailored towards compound lifts. Bench, Squat, deadlift, barbell row, military press.

Also, not eating 4 hours before you sleep is silly. You'll be going without food for 12 - 14 hours, which is catabolic, as soon as you eat breakfast your body will be starved, and when you do eat it will store stuff which it would usually dispose off. I.e bodyfat.

1. Legs three days a week? No way in hell.
2. Legs, back and chest on the same day? You must do horrible workouts.
3. (and this is just my personal opinion) Whenever I train shoulders I do them completely by themselves, your shoulders are the most important part of your upper body because they link everything together, and they should be isolated.

My workout schedule.
Mon-Shoulders
Tues-Arms
Wed-Legs
Thurs-Chest
Fri-Back

Also abs and cardio every other day, whether it's swimming laps or running a few miles. Make sure on leg days you hit heavy squats, or if not you can do legs again on Saturday, but I prefer to have weekends off and just blast my legs on Wednesday.

Back days, deadlifts. If you don't put deadlifts in your workout I will come slap you. They are without a doubt the best exercise ever if done properly.

Arms, alternate bicep exercises with tricep exercises. preacher curl, then weighted dips, then barbell curl, then close grip bench, etc.

Chest, I usually switch off every 6 weeks between dumbbell presses and bench presses. Flat, incline and decline. I just feel switching it up gives a better workout.

Shoulders, Kettlebells. I promise you if you start doing kettlebell workouts your shoulders will get ripped in no time.

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Just saying, i was bigger in my lower area than in my upper, now i lost many leg fat, and i'm seeing cuts in my upper body. Which means the workouts weren't horrible.