While I think that's essential, it's not that simple: Some things require much more preparation (e.g., becoming a brain surgeon), and there is also a lot of failure, regrouping, learning, and trying again - which the four Beatles didn't do as much of as most people. Most people have many years of 'failures'.

Also, most importantly, don't expect popular acclaim - the Beatles are an extreme exception - and don't measure your 'success' that way. Especially in art, have faith in your vision and accept that the public may not grasp it now, soon, or even in your lifetime. Even many great artists recieved little acclaim (or worse) in their lifetimes.

> They did not wait for ideal conditions.

In fairness, they didn't need to wait because ideal conditions were there - in culture (esp. at time that valued innovation and creativity), in music (ditto), in recording technology, in television, in mass media generally. It's a bit harder to be the Beatles today. (Who is doing it?)