How can I "learn" to build from scratch better?

I've been learning Unreal over the last 2-3 months going over a few tutorials, making some extremely basic games. But I want to know what's the best way for me to actually "learn" how to make the games myself rather than having to constantly recheck old tutorials and search things up.

There's also the case of AI, of course asking AI for help has its place but I don't want to become a lazy chatgpt developer.

Essentially tl;dr of what I'm asking is what are some good habits or methods of learning I can use while I'm still "fresh".