I was promoted too quickly at my Silicon Valley job and it made me overconfident - moving to a new company was a humiliating experience

Being promoted too quickly made me overconfident. Nowadays, at my own company, I'm much more careful about how rapidly I promote employees. The experience humbled me.

I was promoted three times in my four years full-time at Sun. I had a lot of confidence because I'd already run my own business, which contributed to my rapid ascent.

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