Ok so I need some suggestions. My right arm is much weaker then my left arm. I was injured playing Lacrosse many years ago. I am new to weight lifting and am just realizing how much of a differance there is between my two arms. Doing curls last night, I got to the point I couldnt lift my right arm any more. My left arm was barely working to lift the same amount of weight. So what would you guys recomend to me. Should I focus on the right arm for awhile and do nothing with the left? Or should I just do execises that both arms are working together?