i am 14 and wiegh about 150 I bench 140 and have been lifting for about 6 months. The first couple months that i lifted i used to get really sore the next few days.( i used to lift everyday) then i started to not get sore (which probably means ur not gaining much muscle,right?) i figured it was due to overtraining so i started to lift only every 3rd day the soreness hasnt come back after a couple of months even when i try exercises i have never done before. any suggestions.