It's really difficult to see anything (to start with I couldn't even tell which surfer was you!)
But, at a guess, judging by what I can see, I'd think that you're not on the front foot, your back arm seems to be going behind your back and probably your front arm is blocking your twist.
Try getting more on the front foot, lifting the front elbow and putting it in your back pocket which may help.
Commented on Anyone else suffering? 🤣I'm 62 in Mar...
16 Jan 22:32
But apart from that, you're OK... 🤔