(I remember the first time I was using a tablet, it was exactly the same what you're describing but once you get used to it you'll never ever touch a mouse again for texturing. )
Hey congrats on the buy. I've been using my WACOM now for years, I can't recall how many, maybe 4 or 5.
You can get acquainted with the tablet pretty well just by opening up a blank canvas and scribbling. I scribbled for hours, which eventually turned into little drawings as I went. This helped me learn pretty quickly the feel for the pen stylus.
Make sure you have it in the absolute mode.
So, if you touch a place that the mousecursor moves to that same spot on the screen.
That said, follow adlabs advice.
practice is the key 
but once you get used to it you'll never ever touch a mouse again for texturing. )
Linear Mode
