Trust yourself! You're doing great in Blind Review - really keep in mind the takeaways you have when you go over your PTs and try your best to apply that on test day without being too hard on yourself, I know that's easier said then done, but you got this! You can definitely keep Nov in mind as a chance to improve.

I think if you are already registered for October, that there is no harm in taking it, unless you are worried about reaching LSAT retake limits (3 times within a given year, 5 times within the current and five past testing years) That way you have a score on file, some confidence moving into the November exam as you already have one test date experience under your belt! Confidence in yourself counts for a lot, as silly as that sounds. Don't go into October psyching yourself out, know that retakes are normal and that your highest score is what matters. You can always submit applications with your Oct/Nov score as well and then update them with your January score if you do retake it then. Best wishes!!