Writing isn't good or bad, it's effective or ineffective. What matters is whether it reaches your audience and does what you need it to do. Judge writing by its impact, not by subjective taste.
There is no such thing as good or bad writing, only effective or ineffective writing. The terms good and bad are entirely subjective, I promise. The writer you love probably isn't the writer that I love, and the writer that I love probably isn't the writer that you love. We have subjective tastes, and so I think that it is very challenging when a writer says, my goal is to become a great writer, because that is an unclear aspiration. Great is completely subjective, which is why I much prefer and a much clearer aspiration is to think in terms of is my writing effective or ineffective? And what I mean by that is, am I able to speak to my target reader? Do they see themselves in my writing? Am I effective at reaching them, helping them solve a problem, or entertaining them? Because if my writing is effective at achieving those goals, then it's great writing.