...Still working on it my friend. Many, like myself, are never satisified... but I guess this goes for many aspects in... like my career.
I started at about 150 in HS, left HS at 160-165 (can't remember) and hit 220 by my junior year in college (yes, naturally... just protein food and creatine... was only 220 for about 2 weeks, I was 210-215 most of my Junior and senior years). The college years are where I made the most hardcore gains... I haven't grown like that since, but then again I haven't walked around the streets of Manhattan with Tupperware full of chicken and broccoli all day long like I did in college.
Also, I no longer have a slew of meathead inspiration and hardcore gym partners that were bigger than me and took me under their wing(s)... nor do live in a (frat) house full of like minded meatheads, anymore (wow I miss college/PSU!)
At PSU it was hard not to have the bodybuilding/gym bug bite you when there were so many hot guys bigger than you grazing like cattle all over the campus and making it look easy, lol. I learned that with intensity, consistency and FOOD it really wasn't all that hard (and, okay... great genes too).
I didn't look at your profile to see your age, but I must say that aside from the habits/methods I listed above, a heck of a lot of my growth was simply adolescent natural growth.... at least I suspect it was since I can no longer make gains quite as easily (I suspected this back then as well).