Take a break, I usually can’t do more than a couple of hours at a time because the kid demands an equal share of the computer, this has been an advantage. It also allows me to have regular meals and keep up with the housework - less of an advantage.
You can zoom into the map (I have it so the recipes look about 32pt) with ctrl+mousewheel up.
Have you got Sister Pedro? (from the main village Left up left left left) I think that’s where you get the blood of Oceanus to open up the right hand side of the map.