As an employee, you are essentially a small business of one.
Your employer is the customer, and you must focus on how to increase your skills to be more desirable.
Do everything you can to make your boss look good.
They will remember this when it is time for a promotion or a raise.
The qualities that got you your first promotion won’t always be the ones to get your next one.
At higher levels, employees are judged on their ability to deliver future value to the company in ways that are not taught or explained to them: most importantly, how much business are they are able to bring in.