We remember a skill or procedure better if we are good at it. If an expert pilot and novice student both stop flying at the same time, the expert pilot will later have better recall of how to fly.
We can use this principle to improve retention with a technique called overlearning. Overlearning involves learning material past the point of general understanding or standard performance. This applies both to theoretical knowledge, such as learning a particular topic in more detail, as well as performing skills and procedures.
If, for example, it normally takes ten practice interviews to become competent in interviewing techniques, overlearning involves doing say an extra five past this basic competence. This is fifty percent overlearning. Not only do you perform better immediately afterwards, but you also recall the technique for longer. Spread out those extra repetitions over time as well, rather than doing five repetitions together.
Obviously there is the need for balance here. Overlearning has benefits, however you should balance these against time and cost. Also, be wary of boredom. Avoid further repetitions if you become bored in a potentially dangerous environment. Find ways to further challenge yourself during repetition, for example by using task variety and task interference. Simulation can also help here because you can do many more repetitions without significant increase in cost or set-up time.