Learning digital drawing with a Huion tablet.

Just bought a Huion GT-221 Pro drawing tablet. I'm not a reviewer and I haven't used any cintiq to compare with it. The colours are a bit off. But the pressure sensitivity is good. This is my first drawing with it, I didn't get into details, just testing the brushes.
Any suggestions on how to learn advanced painting techniques in photoshop ? I tried lynda courses but I get bored watching it even with 2x speed because there is barely any information I don't already know and they drag a simple subject for 30 minutes...