i think u should read more stickies or look at some of those journals written by our fellow lowyat frens here.
wat u need is time... effort and time...
maybe ur routine or diet is the problem.
lifting weights doesnt necessary make u bigger.
doing the right routine, and eating the right food, helps u get bigger faster.
so i think u need to be more specific on wat u eat, and also wats ur routine.
coz we do not know how to help with such a vague description.
protein powder/supplement or more widely known as whey is just SUPPLEMENTS... u do not REALLY need it unless... u do not get enough from ur solid meals...

remember this... FOOD is better than SUPPLEMENTS. =.=