You have to practice. With a wide variety of ukes. Try a wide variety of techniques. You have to get to know yourself. Your strengths. Your weaknesses. When you think you know something, you must be able to look again. Buddhism teaches to practice as though your hair is on fire. Terry Dobson taught an aikido class where he told me to practice as though uke's hair was on fire. There's a good lesson here.
You made me laugh. I was thinking, hair on fire? What in the world does that mean? Would I be screaming and jumping and flapping my hands on top of my head, trying to put out the flames? Then I realized, hey, wait a minute. I'm bald. I don't have hair to catch on fire.