hey there. i'm 17 years old, 5'9, about 133 lbs. i'm not too skinny... i mean, i'm not the guy whose bones stick out of the body... i'm very ripped and i receive lots of compliments for my body at the seaside or when i wear a tank top. nevertheless my body fat is under 9%, which i think is very low. i used to lift weights (i didn't go to a gym, i just lifted light weights at home) but now i'm not keen on that anymore. i'd like to know if there's anyway to reach 155 or at least 145 lbs just by doing push-ups... i can do several series of 50 pushups without too much effort, so i don't know if it'd improve my weights... moreover, does drinking milk make you gain weight? what "home food" should i eat? i mean like bread, milk, fruit and stuff that u can find at home...