Seedleranswered grow question 5 hours ago thats up to you, i can tell you how i do it.
Beginning of the week, end of the week updates with some pictures, telling the days on the pictures in the dairy. update stuff like humidity temperature pH.
and thats basically it. I count day 1 from the first day of veg. that's usually 1 week from germination (when the stem becomes rigged)
The more the better usually and if you go into detail it will help a lot if you have any questions at any time.
Whatever you do, have fun while doing it, and if someone can learn something from looking at your dairy, its even better.
Happy growing and welcome