u/Exotic_Dot645

I'm trying to learn gamedev and feeling stuck at "tutorial hell". Every resource I find explains the basics of Unity, Blender etc. But where can I find more advanced topics like terrain genaration or animated 3d characters. Sometimes I feel like I don't know what to search and sometimes I feel like I simply can't find what I'm looking for

I'm a beginner developer trying to make my own indie game. Nothing much set in stone yet. I was wondering is it better/easier to have 3d models or 2d sprites if I'm planning on customizable character. From what I see 3d model take more skill to make but once created I can use an animation on multiple models while 2d sprites easier to draw but I have to animate every sprite for diffrent animations. Is there something I'm missing? Which would be the smarter way to go?