Even though I suspect that I have adhd, I have some personal experiences of entering the flow state. It only happened when I was doing game development. It was like with a blink of my eyes and the whole afternoon was gone. It was very pleasing and productive, and I really want to get into that state again. But every time I want to focus like that I always find something I could play with, and it’s very hard for me to concentrate. Or maybe it was because the things I have been working on are too difficult. However, the state is unquestionably a state I will strive to achieve when working.