Learn to use both hands

It's nearly impossible to be a great lacrosse player without having great stick skills with both your right and left hand. You should practice cradling, passing, catching, and shooting with both hands as soon as you are comfortable with your strong (natural) hand. I am naturally more comfortable with my right hand at the top of the stick, so my right hand is considered my strong hand. My left hand was my weak (off) hand, and it was the hand I needed to spend extra time developing. It will feel extremely awkward when you first begin playing with your weak hand, but over time, it will become much more natural. The key to making it comfortable is practice and repetition. Being confident in your ability to use both hands will quickly make you a much better lacrosse player as you will be able to dodge in any direction and shoot from any angle.

When you are comfortable cradling, catching, throwing, and shooting with your strong hand, you can begin using your weak hand. Pay close attention to the motions and technique you use with your strong hand and try to make the exact same motion with your weak hand. If you're working on throwing the ball, notice how you stand, where your arms are positioned, how you grip the stick, etc., with your strong hand and replicate it with your weak hand.

If you are only able to comfortably use one hand, then defenders can take advantage of your inability to play with your other hand. For example, if I am a right-handed player and I can't play very well with my left hand, then my defender will try to force me to my left hand and make it difficult for me to use my right hand.

If you are equally as good with your right and left hands, defenders won't know how to guard you and you will find it much easier to score. You may find that you end up scoring more goals with your weak hand than you do with your strong hand! For a couple of years in high school, my defenders would try to stop my right hand, allowing me to dodge down the left half of the field. They were daring me to dodge and shoot with my left hand. I made them pay by putting the ball in the back of the net. By the end of the year, I had scored more goals with my left hand than I had with my right hand!

Carry your lacrosse stick with you wherever you go to become more comfortable holding it in both your strong and weak hands. The only way to become comfortable is with practice, and the more practice, the better you will be.