thanks for the advice.
i'm not sure about the genetics, my older brother works out at the gym all the time and his body is a lot bigger than mine.
and yeah i guess that i do have somewhat a high metabolism. i've been trying to stuff myself during meals sometimes just to see if i gain any weight, but after i workout or something i'll lose the weight like nothing.
anything i should be eating that will help me 'muscle up' any quicker?