Not sure where to start learning? Start small. Over time, enough manageable chunks will take us farther than we ever thought possible. In anything.
When you are trying to learn something hard, like the snatch or a muscle up that hinges on technique, you have to spend the majority of your time on the most basic components of the movement.
How do you learn? There are 4 stages to learn. Where are you in the sport you are training? Review the Conscious Competence model of skill acquisition and find out.