To maintain a level of success, you should always be willing to learn. Never think that you know everything. Be curious, and take advantage of the numerous free courses available online to broaden your skills set.
For example, if you work in marketing, you could learn a programming language like Python to automate some of your tasks. Or you could learn about sales to be able to pick up the phone and convince influencers to talk about your business.
Contributor: Gregory Golinski from yourparkingspace