These six points don’t cover everything you need to know to make a career in this business, but they’re a good foundation.

One additional piece off the top of my head:  Take the long view.  Focus not on what you’re doing today or this month, but on whether today or this month are taking you toward where you want to be in a year or 10 years.  It’s commonsensical, but when we’re frustrated / angry it’s easy to forget about the journey..