Something I have neglected the last few years with my sport that continues to have significant research and evidence behind it's effectiveness is the power of visualisation. When done right, it can be as effective as physically practicing the skill itself. But it can also pre-load your mind with evidence that your body knows how to execute. Try this: Don't see yourself doing the skill. See the perfect outcome. E.g. kicking a footy - don't see yourself kicking the ball, see the perfect ball flight hitting the target at the right trajectory. Practice some of the skills you want to affirm in your mind your body is more than capable of executing. Do it for 3-5 mins per day. Visualisation will also help you move on from mistakes, as your mind knows your body CAN execute the skill, even if it didn't the last 3 times.