How can I make use of 6 months to prepare for the next batch of YC app?

Have your watched every video produced by YC? I've applied this last round and if I get in, I'm pretty it was because these videos helped me write a clearer and more concise.

Even if I don't get in, these videos have taught me enough that I've made more progress and insight on the last two months than arguably in the last year. I cannot recommend watching and rewatching these videos.

Also, you can still apply now, even if it is late. You know that right?