What does it mean to be the "best programmer ever"? You probably want a more specific objective. Maybe you want to be the best at competitive programming? If so

What does it mean to be the "best programmer ever"? You probably want a more specific objective. Maybe you want to be the best at competitive programming? If so, then practice that, read books on DSA, etc. On the other hand, programming is a means to an end, and most people who are thought of as "great programmers" built something useful, such as an OS, a programming language or a software framework. Rather than focus on development skills in the abstract, it might be more productive to focus on a problem you want to solve, and learn what you need to achieve that.