Einstein defined insanity as doing the same things over and over again while expecting different results. People do love doing something they were proficient at but to achieved that kind of proficiency requires some changes in the usual aspect of the things they have been doing. Even though some people love to only do something they were good at, sometimes, they took a step further doing something different but still within the scope of what they are proficient at. This makes them good at what they are doing. Doing something that you didn't like for the sake of an experience is a risky and wasteful act which most of the time end up with failure to stick to that particular routine. You can change whatever you want, its your own life, but make sure you do something that signifies where your strength is. It is a foolish errand trying to master anything that we're not interested in, everyone have their own strengths and weaknesses. Know your limit.