So on your screen, if you hover your pen just above the tablet without touching it, you should be able to see a circle (or crosshair). That is what I use to know where I am on a page. Sort of think of it like a mouse but hovering in the air. And instead of clicking, you are poking.
If this is not showing up, you can go into your settings to make sure this is happening.
If it is showing up, my recommendation is to just practice.