Re: And what about chance
Luck. The honest successful entrepreneurs will tell you they had (amidst the early mornings, poverty, etc) a dose of luck. They may tell you they made that luck (indeed they may have broadened the gene pool so a chance meeting was more likely), but at least be frank about the luck element.
If nothing else, you get lucky that your sector takes off, or that you were gifted with an idea, or that you were born into a family where you had contacts in government, or went to school with a rich kid wanting to take a punt. Or lucky that you are smart, don't have cancer, live in an enabling age, etc. Luck is still inevitably a real factor one way or another.
Advice is of varying value, it's always worth listening, but it's always worth remembering who's dispensing it and why. I listen to a lot of advice, some of it 'feels right', some is just bollocks, but it's always worth listening. That guy spouting mostly crap might also have a turn of phrase for something that hits it on the head, or inspires another idea.
My advice to everyone is to listen to anyone offering advice, but act upon it selectively (including this advice).