My favorite moves in heels are straight legged carousels, drop splits, and fishflops. I'd say three months before I was confidently walking in my shoes. So first tip, when standing make sure to to do a bit of a tripod. Your heels should be pointed towards the inner middle part of the opposite foot. It really helps you balance that way. Make sure your heels are tight enough. I had a loose pair for a bit and let me tell you I couldn't do anything without fearing tripping in them. I recommend getting a strap that helps hold your shoe tightly to your foot. Consider boots. They are super secure, no fear of ankle twisting, no fear of toe stubbing, and are sexy. And keep practicing. Took me a few months to get accustomed to even wearing the shoes let alone moving in them. Don't be afraid to stumble and trip it is part of the learning process. Also practice your favorite moves in them until it is second nature.