Don't rely too much on milk; I did the "gallon of milk a day" thing for a couple years and while I did gain muscle, I also gained a brutal case of acid reflux disease that took lots of apple cider vinegar to dispel. Just train hard and consistently and you'll see gains appropriate to your body type. Also do NOT neglect stretching and isolation exercises. Many lifters will guide you away from smaller isolation exercises like shoulder raises because they aren't as effective at building mass. This is true, but they ARE effective at maintaining flexibility in smaller auxiliary muscles, which will prevent injury in the long term. I also strongly suggest yoga to all serious lifters/athletes, the flexibility and improved bloodflow will help prevent many injuries down the line. Between weight lifting and Judo training, I've had to deal with a lot of injuries over the years and trust me, you need some sort of flexibility program to go with your strength program or you'll constantly be getting hurt.