I think it's necessary to always expose yourself to things outside of your comfort zone. It's hard to grow as a person if you never venture out and step out of your comfort zone. May I encourage you to take up a new sport?

Take Rugby for example. Rugby is wildly popular in the United Kingdom. I've found a video for you that explains the rules of the game. There's no doubt that by the end of the video you will grow and be a better person for having watched it.