One of the techniques that I enjoy sometimes is reversing the assumptions of a problem that I am struggling with.
I also remember to do this exercise with a pencil. When I try to do things in my head, I frequently get confused.
I realized I was telling myself that the second draft would be harder than the first and I had to know so much more than I knew about writing to complete it. And finally, that if I write quickly, off the top of my head again, it will be terrible.
So I reverse each assumption. There is no reason for me to suppose that the second draft will be anything but easier than the first draft. At least, now I know the entire story. Also I have been learning steadily. Maybe I do know enough my now. And finally, it if I write quickly it might be quite beautiful.
That has gotten me excited about writing again.