Regarding my earlier replies: I think I was a bit harsh. 'Learn while you do' is perfectly alright. What I wanted to say is, read a book or a course or something that guides you during the most difficult steps. I don't care in which order you do it. I'm currently learning programming Rust. And I picked a book combined with assignments. And I like it. It is one short chapter with information and then you get to apply it right away. I think this is the most effective way to learn and remember things, for me. I'm trying to be a bit patient with the project I want to start. Because I could probably jump straight into the project and see how far my background knowledge from other programming languages will get me. But I'm sure this will lead to an amateurish result and bad design choices I'd need to face later. And it would take me longer all in all than being strict and learning 2 weeks and then doing the work after that, but much quicker.

That was more or less what I was trying to say.