Learn to play lefty and righty equally as well. It does not matter how good you are at a dodge. If you make the move the same way every time, your defenseman will recognize this and you'll never get your hands free. Keep your hands and elbows high and away from your body. Turning your upper body about 90 degrees while cradling your stick in the same direction and uncork in the direction of the target.
Good golfers use the same principle when hitting long and accurate drives.
At the same time push off with your legs in the direction of your target like a pitcher does in baseball. Shoot overhand never losing sight of your target. Here's a few tips. Don't worry if you miss the goal badly the first few hundred times. Your power will come from a big hip and shoulder turn while cradling your stick behind your body.