You don't need to become a master to switch jobs. You just need to be able to learn new things. You weren't a master at your current career when you started it.

You don't need to become a master to switch jobs. You just need to be able to learn new things. You weren't a master at your current career when you started it. Assuming you will live to 86, you still have half your life ahead of you. But the longer you wait, the less time you have. Just do it. You will regret not trying.