I also switched entire careers (twice), that led me to be 'professional' at 3 things, which means I'm not as good as someone who 'stuck with it' in any of the 3, but I have an extremely unique skillset. So when you say you're "diluted", I hear you say you're in that very special overlapping part of the venndiagram! Congratulations!
Also, while it doesn't answer your question of how, this reinforces that trying to do is a very good idea. It's a podcast episode of Tim Ferris interviewing Adam Robinson (he was friends with Bobby Fischer, the chess player). The entire episode is very much worth listening to, but a key quote:
> I think the American psychologist Maslow said if your only tool is a hammer, you view every problem as a nail. I would flip that and say that the geniuses have very limited toolsets. They have a hammer and they’re geniuses in looking for nails. That’s their genius. They have a very limited skill set but they master it and apply it incredibly well. I’m reminded of the movie Karate Kid. Where it’s wax on, wax off, sand the floor and then he had that crane kicky move, and he won the California State Championship on the base of those three.
Also, while it doesn't answer your question of how, this reinforces that trying to do is a very good idea. It's a podcast episode of Tim Ferris interviewing Adam Robinson (he was friends with Bobby Fischer, the chess player). The entire episode is very much worth listening to, but a key quote:
> I think the American psychologist Maslow said if your only tool is a hammer, you view every problem as a nail. I would flip that and say that the geniuses have very limited toolsets. They have a hammer and they’re geniuses in looking for nails. That’s their genius. They have a very limited skill set but they master it and apply it incredibly well. I’m reminded of the movie Karate Kid. Where it’s wax on, wax off, sand the floor and then he had that crane kicky move, and he won the California State Championship on the base of those three.
Full quote/episode: https://www.youtube.com/watch?v=oSyMmleisQM&t=31m06s