I just took another snowboard lesson. I have been doing it all wrong and my bindings were all set up wrong. I had to re learn everything, but my instructor was really good. He said I just need to:
"Imagine you have a beach ball between your knees and you are reaching for a pint of lager"
And he was right, I have much more control now. Yey.
However I did catch an edge and stack it pretty bad and now I can't straighten my elbow. But it was still sick.