When and if you feel ready for the big next step, Erindale from CanopyGames published an excellent advanced #geometryNodes course, have not completed it yet, mind blowing up to now @BenHouston3D !
https://www.canopy.games/courses
You can also learn a lot just by watching Erindale build ENTIRE SCENES with the nodes!
Although, He says that most of the time is just faster to just create the geometry without nodes XD