I've found I don't really level up by reading books or tutorials.
I level up when I actually do a project by myself from start to end. For the projects I do, there tend to be parts I know and parts I don't, so I still Google for the relevant bits and pieces that I don't understand.
So I guess keep working on projects that have parts you don't understand. There also need to be parts that you do understand, so that you don't feel like you're jumping in at the deep end.
On a side note, I'm not knocking reading books. They help me become aware of certain ideas, but I don't learn them completely until I've implemented it myself.