Video analysis is one way to review your lifts to make sure you are pulling efficiently. Another way that provides immediate feedback is True Pulls.
Tommy Kono was one of the greatest weightlifters of all time. Aside from his tremendous success on the platform, he was a champion bodybuilder and authored two excellent books. I learned the concept of the true pull from him (this is what I call it).
Essentially, the point of using this training technique is to make sure you are pulling, whether it be a clean or a snatch, to the proper height to get under the heaviest weights, most efficiently. It is common for lifters to “cut” the pull and rush to get under the bar. This can work when the weight is manageable, but once the weight becomes more challenging, it is less likely you will make a successful lift. There are many cues, such as, “be patient, stand tall” or “finish the pull” that are used to help lifters focus on pulling the bar as high as possible before getting under it. The True Pull is a way to train your groove so that you instinctually pull correctly every time.