You choke when too many thoughts flood the prefrontal cortex where informational memory is housed. Worrying too much can busy the brain so I came to the conclusion that I will need to work the motor cortex (which plans and executes movements) more before November. The only problem is 'HOW'.
Researches say when you start to detail the technique instead of throwing it all to the muscle memory to run the show, you will mess up. However, once you got this bad choking moment, watching your failure help wash out the negative emotion and decline prefrontal-cortex activity. Hence blood flows back to the motor areas increase, this echos what KJ and R&Y said, practicing basics is essential. Just an addendum from kandykane, 'practicing the basics correctly right from the start'.
Right from the start, if you don't get it precisely and accurately, it will take you a life's time to correct the wrong doings. Because you are probably not initiating your prefrontal cortex while learning but let the motor cortex authentically grabs the memory of how to exercise the body, and let motoring areas automatically generate the way of exercising, you will unconsciously acquire the undesired motion and click the wrong doing. Once the muscle memory is built, you will need to pay extra effort to consciously tune it back to the desirable way.
Therefore, in my understanding, verbal instructions of correct positioning and footwork are necessary for they command your mind to response to specified signals. When the first perfect reaction is done, perfection will be easier to achieve since all you have to do is to stabilize the performance of the already built technique by consolidating the muscle memory.
Well, to put all in a nut shell, 'perfect practice makes perfect'. And that is what I am going to do- resume intensive training to get myself physically and emotionally ready for November.