My coach always insists on my learning to hold the spins far longer than I need. For example, when I was having trouble with the backspin (I could barely get two revolutions!), she said to me, "No. Try for four or five." And I bugged out because I could barely get two (I needed three), but it worked. It tricked my brain. My brain had been so freaking out about three, now it was freaking out about four or five, and I was able to do three revolutions without thinking about it.