I'm going to play some music (memorized) for the audience in a big hall in less than two weeks time. I have tried to play it in front of friends for a few times. My body and hand will just shake whenever I thought about it. My legs can't stop trembling as well, and sometime, cramping. I don't know how to deal with it. The memorizing part also make the situation worst. Can't stop myself from thinking about how scary it is. Anyone have experience dealing with this??? Do you overcome it or you achieved a balance between both?