A smaller board with less volume will make your take off positioning more critical, so you may miss more waves.
However it will be more manoeuvrable which would help with turning.
Of course it will also probably be more twitchy and less stable, so you'd need to have your stance right too...
Try chatting with other people in the line up who are of similar or slightly better skill level than you and ask about their boards and maybe try swapping for a few waves if they're amenable and see how you get on.
Commented on Looking for help. I cannot for the li...
28 Jul 18:36
Get a wax crayon and write "Look up!" on the nose of your board!
Seriously, it reminds you of what you need to do in a stressful situation and then you can start to break the habit 👍