A lot of people put extreme amounts of emphasis on behaviours that will likely only contribute a tiny percentage of results, at best.
Like wanting to know the absolute best macronutrient split or whether you should eat 3 meals a day or 4.
If you know the fundamentals for what habits provide the biggest stimulus for results, you can also decide which ones you decide not to bother with.
Here is my list of fundamentals. Consider it a decent starting point and adapt them accordingly to suit your personal preferences.