Always keep learning
It doesn't have to be anything big either. Like today I realized iTerm2 the terminal I have used for basically forever as it is VASTLY superior to any terminal I have used on any platform pretty much has a broadcast to all tabs function. As annoyed as I should be not knowing that, I learned how it is implemented and tested it out running a command on 3 servers I needed to do that in the past I would have one by one logged into run check then existed out. It literally cut my time by 50-60% as I could type once and have three systems execute the task. With complicated tools like Metasploit, Wireshark, etc you will always find a feature you never knew it had that cuts your work time and improves your productivity. It's important to remain open to that and not be annoyed that you didnt see it sooner.