There is no way to make a simple walkthrough for this VN because there are so many different ways to get to the end.
There is also an RNG that gets rolled every night once Max goes to sleep for all of the chances for the next day so saving before a choice is no good in this VN because all the rolls were done as soon as Max went to sleep last night for the next day.
I would follow this day to day walkthrough until Max can support himself with his web site but remember it is just a guide and does not need to be followed to a tee.
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It only goes to day 9 but keep following it till Max can support himself. (This was done when v.03 came out a long time ago.)
Then use the v.6 as a guide to go forward if needed but you should be able to play with just the hints in the game.
Later if you get stuck see post #2 of this thread for all my mini walkthroughs for the harder parts of the VN.
You may want to read my "3. My Easy Peasy Walkthrough with Eric as a friend, for now. " and "4. My Easy Peasy Walkthrough going to war with Eric from the get go. " plus "Two ways to fail at this game."
Post #2 of this thread.
https://f95zone.to/threads/big-brother-walkthrough-faq-thread.2613/#post-184183