Maurice Richard was considered to be too small and too frail for the game. He won the Golden Gloves in boxing, then proceeded to dominate the ice for the greater portion of his hockey career.
Gretzky was "too small". We saw how that went.
Martin St. Louis -- the scouts wouldn't even look at him, he was so small compared to current players. His good friend and teammate, Cavalier, twisted some arms and got the Panthers (Edit: The Lightning -- that's what I get for posting half asleep) to take a look at the little forward. It pisses me off that a place that doesn't even get snow now has a handful of the best players in the NHL. St. Louis is dynamite on the ice.
It's the old addage, man: size ain't everything. It helps, but it ain't everything.
Use your weight training to grow stronger. Practice your speed and agility drills. Work that stick handling like it's your new fucking religion -- watch how Iginla, Cavalier, and St. Louis handle the puck. That's their secret, and where so many people fall down in the fundamentals. They don't even need to look down to know that they've got complete control, even in the middle of complex skating and stick-handling patterns. Get a puck and a flat surface (or a ball if you need to), and practice stick handling for at least a half hour a night. Make it your prayer and meditation.
For an additional kick, add lever work for your wrists to your strength training. It'll be slow and irritating advancement, but by God it'll pay off in spades when it comes time to keep that puck or steal it off the other team.
The chances of your growing over six foot are slim to none. It's possible, but not likely. So instead of spending all that time looking at what you consider a weakness, focus on turning other areas into your strength. Look at the wild eyes of Richard and St. Louis -- those maniacs would do anything to score a goal.
Build your speed, build your strength, and build your skills. Hammer them hard. Be unrelenting.