It is a tough situation because how people's bodies respond is different and the sleep factor, and diet factor is huge as well. Also each individual almost has to go through this period of testing their abilities and will ultimately get over trained to understand that threshold and when their CNS is shot.
Also depending what someone is training for. I'm setting myself up for explosive athletic output with a splash of physique as a secondary by product.
If I was just going for a good physique I feel like that is easier in a lot of ways but more painful from a diet stand point.
Check out the blog i wrote in reply to your housing questions
and reply with what more you need explained so i can write more.
https://hive.blog/hive-123046/@builderofcastles/the-pieces-involved-in-refurbishing-an-older-home