How to stop?

I’m knitting a hat and it continues to turn. I can i start the hat and prevent it from turning. TY:)

Are you knitting flat or in the round? Do you mean the hat won’t stay down flat while you’re working? If so that will solve itself after you get a little more done. After 2 or 3 inches you should be fine.

Or you might have twisted the sts when you joined.