I'd be investing the time to learn Cycles, Silgrin. Blender Internal isn't being developed anymore and has grown very unwieldy and cumbersome to accomplish much in, whereas in Cycles you have new materials being developed all the time, and then, there's OSL. You'll be glad you invested the time.

There's an excellent eBook published by Packt (O'Reilly's) on Cycles materials creation as well as one (very recently released!) on lighting and rendering. They are worth every penny... guiding you through areas the forums sort-of can't (or won't).

Monterey/Mint21.x/Win10 - Blender3.x - PP11.3(cm) - Musescore3.6.2

Wir sind gewohnt, daß die Menschen verhöhnen was sie nicht verstehen
[it is clear that humans have contempt for that which they do not understand] 

Metaphor of Chooks