Hey, I'm new, to this site and twirling in general. I started only a couple weeks ago when a girl offered her glowsticks to me at a party. After the bleeding stopped I found that I actually enjoyed it

Anyways, I've been trying to practice all this, and havn't been doing too bad, but I have questions. I can do the beginner stuff on the poi lessons page, and the weave, corkscrew, and windmill. I'm not good at transitioning or turning from one to the other but I'm getting more comfortable with that as I practice. My question is with behind the back moves. I can do ok if I alternate, like in the windmill or alternate butterfly, though I should practice more to become stronger at it, but when I tried the full behind the back butterfly I couldn't even start spinning. That and I want to do the Windmill thing behind my back too, I've seen people do it, they start off normal and just stop alternating and keep it behind their head. I just can't physically or mentally do it though.
Anybody got suggestions? It just doesn't click. Oh, and does the windmill move only involve alternating one hand? It's kind of hard to tell with the clip and I alternate with both.
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Ambiguous