It's time to satisfy your intellectual curiosity. You know what you do well. Now it's time to explore unknown territory. Take a class, read some books, or watch instructional videos. You don't have to study a topic that's related to your job. In fact, it would be best to explore an area that has nothing to do with work. Having a hobby makes you an interesting, well-rounded person. You take great pride in being an expert in your field, but you have no intention of being a one-trick pony. Expand your horizons and have some fun. You need a change of pace.