I agree that practice is both necessary and good.Regardless look at what you have learned.
My suggestion is that you devote some intense study to the Human Wave rules and become an expert at them. I did that for Platoon Movement and found it very educational and interesting. I've advocated this approach in the past and believe it is the best way to increase your understanding and skills in an area that you feel weak on. Btw the you is meant as anyone, not specifically you you.
Maybe While Singin “We're riding along on the crest of a human wave,
and the sun is in the sky.
All of our eyes on the distant horizon,
Look out for passers by.”