The last part of the picture is when is enough, enough? From an athletic perspective, we consider ourselves well-hydrated when we urinate frequently and the colour of the liquid is pale yellow. Colour checking of your own urine might not be something you considered in the past, but its a helpful indicator of health and hydration.
Another way of checking is to look out for signs of mild dehydration. When these occur - have a drink. Things to look out for include increased thirst, dry mouth, decreased urine output, urine is more yellowish than normal, and dry skin.
Honestly, I wouldn’t worry about the too much. I would just…drink some water!