Things you need to do or get for Great CG
Get ideas for your image. Check out artbreeder and ai powered image generator that uses sliders to iterate the image.
What do you want to do in 3d
Good wisdom about ways to make money in Blender
Styles choose a style for your Animation or Image
3d or 2d Blender does both
Claymation, you can do Ardman (Wallace and Grommit, and Shawn the Sheep) Style claymation in Blender.
Gleb describes 14 different styles. Looks like he's mostly using the compositor in blender to achieve this. Interesting was the minecraft look which used a modifer.
Watch this video before you do any CG.
Making an animation has a lot of the same principles of Film Making. This person describes the types of shots and uses of. For now skip the part about microphones, He talks about lighting also.
Learn Color Theory
Learn Story telling
Learn Basic Camera Shots
Good video on composition.
Learn to Get Funded