Throughout my career from a student to a freelancer, starting my own business and working as an office employee, I have made mistakes, failures, stupidities, and other carelessness. It would be nice if all these experiences could also be life lessons for others because I believe success or failure, right or wrong, we can still learn from what others share.
Wrong is very reasonable because we are just human, I am sure I will keep making mistakes later, but apart from that,

This is a biased survival in which we tend to believe in someone just because they are the winners. Though there are two things that are most influential and the funny is rarely discussed in the advice of success is the circumstance and luck. The same is true in love (relationship), career, friendship, and others.
The point is that no one really knows 100% what is the key to success, what works for them may not work for you, and vice versa. So when you hear a piece of advice from a successful person remain skeptical and use your logic to make sure they are not cheating you (a lot of people who work selling successful advice).

The conclusion is not only to hear advice from one side even though they "look" successful and true. Learn also from the failures and mistakes of those who fail.
Walaupun Anda sudah mengikuti semua pedoman, panduan, sistem, aturan, arahan, dan jutaan nasihat lainnya, pada akhirnya tetap tidak ada yang bisa menjamin hidup Anda pasti aman. Jadi mulailah belajar untuk berani mengambil resiko dalam hidup ini dan jangan selalu terpaku pada sistem/aturan yang sudah tertulis.