I have had the same experience, interestingly in the same time frame. I felt that when doing Java projects I needed to enter this special telepathic flow-state

I have had the same experience, interestingly in the same time frame. I felt that when doing Java projects I needed to enter this special telepathic flow-state with my IDE and cut-paste shortcuts and change huge chunks of code every time the model changed a little bit. Transitioning to immutable data classes with functions operating on the classes, and abstractions focusing on what functions operated on them and in what context made life much easier.