Yeah i thought it was fun haha :D
Yeah there's like LOTS of different nodes, there probably a lot that I do that could really be simplified if I knew them more... Specially the control nodes are tricky. I did the same, youtube videos for the basics, and then just creating many different little unfinished things, to see what is possible and how to do it, and you'll just become more and more used to the different nodes, and scripting.
Also i have programmation classes at college, so that helps a bit, but not that much. If you want I can upload the godot project, but it is really messy so I can't guaranty it will be of help...