This is what I did: I followed various tutorials which covered the basics. I also did stuff like just play with different parameters, try to imitate certain materials, experiment with modifiers etc.
Once I felt comfortable and no longer intimidated after having opened Blender, I decided to make my own a project and did this: Revenge of the cubes!
I might have spend 4-5 weeks on it and when I started, I had no clue what so ever how to start it. As things progressed I dug into whatever specific challenge I faced and now, I feel I know Blender at a whole new level.
And you know what? I started looking at pre 2.8 videos when I needed info for something specific. I could now follow along without confusion.
That’s my recommendation: cover the basics with tutorials and then jump right into it and tackle the challenges as they show up.