How to stop from tensing up as i hit the cue ball?

I can feel it sometimes, but afer watching video of me playing i do almost every shot as i strike cue ball i tense up real bad , my shoulder/elbow tense up bad, i know you dont want your shoulder to move , but don't think any tension good thing

Anonymous2019-03-25T08:52:32Z

Because you care about the outcome, rather than the act of striking.