I’m probably not the best person to teach but plenty of ways to practice and overcome this. It’s also good to watch others who can do it well but he mindful that everyone’s makeup is different, so our challenges with certain movements are unique. The cause of oddities in movement is usually a weakness somewhere else. What I would suggest is to record yourself doing your movement, then observe what is happening. Or, have someone who knows their stuff observe you and have them provide feedback.