Ask HN: I'm constantly bored at work, what should I do?

Like the title says. 2016 I switched jobs because I got bored. But now I'm in the same predicament. I have more fun on my side projects, but I don't have an opportunity to apply the skills at work. A friend of mine recommended that I go to grad school.

Who do I know if something is wrong with my environment or my expectations(or me)?