As I said on the first page, there are many OCS prep websites, but there is not that much information about TBS. I hope that this page can eliminate a lot of anxiety and uncertainty that you may have. I hope you can learn from my mistakes and be as prepared as possible. Obviously I can't give you the locations of the land navigation boxes, or answers to exams, because no one likes an integrity violator. And besides, you must find those within your heart. Kidding.
Here is a page I found about TBS through the Almighty Google.
https://officer.marines.com/docs/oso/tbs/TBS_Prep_Guide.pdf
It has good information, but not all the information is up to date. For instance, it mentions wearing desert cammies versus woodlands cetain days of the month. At TBS, I only wore deserts during swim qual. I was in 2nd platoon, and in the field, the odd-numbered platoons wore deserts, and the even-numbered platoons wore woodlands. This could obviously change from company to company, but this is an example of some things that are not set in stone. This is also such a trivial point. This guide mostly goes over rules of TBS and money things, but not much about training. Other things in the website above, and my page here, may not be what happened during your Basic School experience...but it should be close. I went to The Basic School in summer 2020, so this is based off of my experiences. As more of my friends go through TBS, I'll update this page with new possible changes.
I'll try to make this site as organized as possible. At TBS, you are graded in three categories, Academics, Military Skills, and Leadership. Physical fitness, which was a component at OCS), falls within Military Skills at TBS. I will also include a page about MOS selection, and some odd tidbits of information that I hope you find useful. I have a basic understanding of what information I am not allowed to share, and I will make sure to note this as I go along. If I find out I shared something I'm not supposed to, I'll delete it.
The Basic School is located in Quantico, VA, just like OCS, but TBS takes place on a separate, much larger-in-area part of this base. The base is called Marine Corps Base Quantico, and more specifically, Camp Barrett.