stop doing 15-35 reps for biceps, increase your weight by a LOT and shoot for 8-12 reps
are you pushing hard or stopping the set when you hit a certain amount of reps? do you stop at 12 when you can hit more? when you're reading those magazines and getting your routines, when they say 10-12 reps per set, they mean if you can do 12 reps in all your sets, then you need to raise the weight. find yourself poundages that are challenging.
ask yourself several questions:
1. are you doing full range reps
2. using enough weight
3. are you feeling your exercises or simply going thru the movements
now, on the real, it seems like you dont know much...go to amazon.com and pick up arnolds enyclopedia of bodybuilding and read it twice