Generally speaking, there's no "finished learning" in tech. By extension, there's no mastering of something because it is and should always be changing. So - focus on being less bad. Getting better and getting better at getting better. Learn to learn and you'll be set up for success in this constantly changing feel.
Heads up: As with any terse bit of advice, there will be exceptions of course, and subtleties and nuance that can't possibly be captured in a Byte of Wisdom. This has been what I've experienced, I'd love to hear yours in the comments too!
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