Pivoting surfboard while sitting

Hi everybody,
So I've been surfing for the past week and I've been having trouble pivoting my board when a wave comes. I've started to get sitting on the board down, but pivoting has been terrible. I wanted to see what you guys suggest.
By the way, I've been using a funboard (8 feet). I've tried to raise the nose of my board up and yank it but I always end up falling. I searched the forums here and someone said to just rotate your arms and legs on one side. What do you guys do?
So I've been surfing for the past week and I've been having trouble pivoting my board when a wave comes. I've started to get sitting on the board down, but pivoting has been terrible. I wanted to see what you guys suggest.
By the way, I've been using a funboard (8 feet). I've tried to raise the nose of my board up and yank it but I always end up falling. I searched the forums here and someone said to just rotate your arms and legs on one side. What do you guys do?