@jgonzalez That’s exactly what I was thinking. I believe that building up the habit of learning and practicing is just as important as the lessons themselves.
How about focusing the modeling and other 3D lessons around building up art assets for a video game project? You could probably cover a lot with the various objects that would need to be modeled for a game, and it would be kind of motivational knowing that you’re working up towards something big. You could have the different areas of the 3D pipeline (modeling, texturing, lighting, animation, etc.) covered in 60 day sections, with the last section devoted to making a video game project (or several smaller game projects).
Speaking of video game projects, another suggestion I’d like to put down would be a course or two covering the Godot game engine (https://godotengine.org/). I know the courses here focus on Unity, but Godot is free and open source, and based on what I’ve seen it’s shaping up to become the Blender of game engines.