There are a lot of suggestions here that seem problematic. For example, the idea that you should read everything and actually understand every detail. While it's a good idea to read a lot about your craft, this task is literally unlimited in the time that it can consume. Do read about best practices, a lot, but experience is probably even more important, and my suggestion is about maximizing the benefit of your experience:
I suggest this high level idea, which I have done in isolation in the past and caused tremendous growth. Think of something you'd like to optimize, run an experiment over a year and take careful notes. For example, once I decided I wanted to minimize defects that I released into production. For a year, I tracked every single defect I released into production, and made brief notes about how I could have avoided it. This led to me completely changing my attitudes and approaches about what is important. I discovered, for example, that very few of my production failures were caused by me writing code with bugs, and that by far what I needed to do is improve my testing strategies, what kind of data I test with, and how faithfully I represent the production situation during unit testing and end to end testing, and how I approach testing in general. There were a lot of observations and approach changes I made, but the thing that made these really stick is that they were my own lessons. Everything in my process was rooted in a hard lesson I learned myself. Whenever someone asks me why I do X I have a war story to back it up.
The point is, you can figure out for yourself the big areas to improve if you set a goal for a thing you want to improve, and carefully record your results, and review those periodically and look for commonalities. You can look at the advice from others endlessly, but the best teacher is experience, usually your own. Make the most of your own experience by figuring out what's important to you and think about process improvement for yourself and those that you work with, as a first class thing.