Lifting routine for beginner

[Nitrojan]

Ok, firstly - yes I have read the sticky a number of times lol.

I have been advised from someone that due to me being new to lifting and only 16, that I should concentrate on doing a 3 day split of FULL body workout.

Just wondering how many of you also think that this would be the best way to go in terms of beginning with weights. I have been doing a 3 day split for 2 sessions now but if you think I'd benefit more from doing a 3 day full body workout then now is the best time to change

Help appreciated

Cheers.

 

[Nitrojan]

Monday (Chest/Shoulder/Triceps):

3 x 8 Flat Bench Press
3 x 8 Incline Dumbbell Bench
3 x 8 Skull Crushers
3 x 8 Close Grip Bench Press
3 x 8 Seated Dumbbell Military Press
3 x 8 Lateral Dumbbell raises

Tuesday (HIIT Cardio)

Wednesday (Back/Biceps):
3 x 8 Deadlifts
3 x 8 Bent-over one arm Dumbbell Rows
3 x 8 Chin Ups
3 x 8 Barbell Bicep Curl
3 x 8 One arm Dumbbell Hammer Curls

Thursday (HIIT Cardio)

Friday (Legs/Abs):

3 x 8 Barbell Squats
3 x 8 Dumbbell Lunges
4 x 10 Calf Raises
Ab workout (Crunches, Leg Raises)

Saturday (HIIT Cardio)

Sunday (Rest)

Although, I did my back/biceps routine today and felt no 'pump' after I had finished. I know this is quite of a 'noob' question however could this be a result of not enough weight or just that my body is not used to it fully yet? Some of the lifts I was beginning to struggle with on say the 6th, 7th, 8th rep. Just curious. On my Monday routine I felt very pumped afterwards (this was my first time doing weights) however this time.. I feel hardly anything if not nothing.

Also, as I have just done my Biceps/Back routine today.. if I switch to doing fully body on Wednesday - will this be bad in general as I will not have left around 48 hours for my the muscles I have worked out today repair.