1.What does Charles Bukowski’s success try to prove?

the author's success in proving what is actually meaning of"don not try".and the sublte art of fucking what u have been doing.

2.What’s wrong with the conventional life advice, which is fixating on what you lack?

Ironically,The conventional life advice just empasizes on what u lack,and already failed to be.

It fixates on the shortcomings and failures to already be,and always emphasizes on them.

3.Can you use your own words explaining what the Feedback Loop from Hell is?

as far as I'm concerned,the more u feel towards something have done,the better or worse effects(influence) will be. I am always intend to explain it potential psychological hint.