guys I need your help

I have 10% body fat, 5'6, 14, and I workout on a bowflex pr1000 mon-tues -thurs-fri.
I am trying to get overall body strength and abs.
this is my workout:
mon n thurs:
incline bench, lying tricep extension, seated lat rows, seated rear deltoid rows, n standing biceps curl. I dropset on bench, tricep n bicep sometimes, n I do 3 sets regularly for 10-15 reps.

tues-fri:
leg extension, standing leg kickback, trunk rotation n seated ab crunch. included in the workout ( in book) are leg press n hip adduction, but I skip those. should I skip or not?

wed, sat n sun are rest, should I keep at rest or do some more excercise in those days?
stats: weight 115-120 lbs, bench 150, arms 13 in, waist 28,
chest 32, height 5'6,and if I flex hard enough you can see a kind of defined 4 pack.

and I have barely hit puberty with lots of pubes, but 5 armpit hairs and faint chest hair.

supplements:
Muscletech 6 star whey protein ( 1 scoop after every workout and daily)
Muscletech creatine ( I think its 6 star) 1 scoop daily as well.

so guys should I wourkout more or less and any additional advice you can give on my regimen?

btw I am Indian if that makes a difference.
Thx.