Early November is definitely not too late to apply. You're better off submitting a stronger application then, rather than a weaker application earlier on. But November is definitely still on the early side and you can work on all of the other parts of your application before you take the LSAT.

In terms of your studying I can definitely relate to feeling tired for days after long study days. I've also been attempting 40 hour weeks and its just not sustainable. The LSAT is an exhausting test. It requires you to practice consistently and to be able to think well. It's not a test you can memorize. There's no use in trying to practice when you're too tired because you won't be retaining the information. Please be more gentle with yourself. It is far better for you to do 2-3 hours a day than for you to do 8 hours and then be unable to study for the next few days. My best PT was on a day where I had given myself 2 days off because my brain felt refreshed. Space out your studying more throughout the week (or even throughout the day). You don't want to burn yourself out. Spending more time studying is not as beneficial as spending less time, but having that time be very focused and engaged. Good luck!!!