To be honest, bitcoin now raises a lot of questions for me. I think that with the right approach, you can still get something, but I would not pay much attention to this.
If you want just to earn something on some asset you first need to learn trading or investing, learning about an exact asset is a next step. If you want Bitcoin be that asset you want to trade or invest it can be a good choice, but Bitcoin itself is much more then just that. If you'll learn Bitcoin as itself you'll see that it is something influencing the world and giving lots of opportunities from which being as asset for trading or investing is a tiny part.