My opinion: * The 10000 hour rule is nonsense. There are skills that require very much practice, and a lot of those are unattainable for most people. You could practice 10,000 hours on the violin or playing chess without reaching the lofty heights of Hahn or Magnusson. That does require some kind of "talent". * Many other skills can be acquired in much less time, certainly if you don't start from scratch. E.g., learn…
Even if there is some merit to the "rule", the intent behind it is you'll master something in that amount of time. You can become good at something with far less time. You just need to be good to earn a living. I think of all the jobs I've worked and the slackers and incompetence I've seen. I think with some education about a job and decent intelligence most people can put in the effort, learn on the job and become good - if they want to.
10k hours is roughly 5 working years of experience with no nights+weekends extra time so if OP switches careers now, they could be mastering something by the time they're 48. I've seen people switch careers into software, and go from junior to mid level up to senior in that time.
Do it.