Whether you can successfully switch career is up to you and how you define "career". I think the most underestimated "hard part" of mastering something new is

Whether you can successfully switch career is up to you and how you define "career". I think the most underestimated "hard part" of mastering something new is that the path to mastery often looks like one failure after another. A long string of incompetence that makes one appear like a cargo-culting dilettante who keeps trying even as it appears they aren't getting anywhere. This is hard for folks to take, especially later in their careers. One has to have a thick skin to get through it.