>>538686857
Source: It's all in my head.
But seriously though, there's a pretty easy book on the topic: Peak: Secrets from the New Science of Expertise.
I also happen to study a bit of economics and finance, so I can tell you that the biggest predictor of general success, of which we often attribute to being a level of wealth, is just the state of the economy at the time when you are in a very environmentally-dependant state.
That is
>Is your field of interest profitable at the time? Are there jobs available? Is there a boom/bust
Comparison is healthy in some doses as it can give you perspective, but don't conflate your own life with that of your parents: they lived entirely different lives in entirely different eras. It is perfectly possible that were they born when you were and in your shoes, that they could have been way worse and vice versa.
You know, isn't this a little bit what the theme of Ruina is all about?