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That's fact. Working tirelessly and shamelessly to keep improving especially when one is doing what is one's passion with improvement in skills.

Truth. I also think that it's a continuous process. It's a real grind and just like freaknlinkin said, there will always be a time when one fails but he keeps going anyway.

this is very true, competency plays crucial role in any business. You don't just jump into a business. You must know the demands of the business.