If you do something really well, keep doing it.
It’s easy to think when you do something really well you should spread out and start doing more things but doesn’t it make sense to really emphasize what you are an expert at?
If you are really good at one thing and start doing something else you will most likely be very good at one thing and average at the other thing. With a lot of hard work (and luck) you can work your way up to being very good at two things.
Doesn’t it make more sense to keep working on the thing you are very good at and become truly great at it? So few people are great at anything so why wouldn’t you want to be one of them?
Just something to think about.
Have a great day!