I have been programming for 40 years. Two things that can make a difference is reading other people’s code, and your code 6 months after writing it.
You quickly realize the importance of good comments and careful design.
This is a lifetime effort.
If you have the right partner, exchanging code for feedback on clarity is also valuable. In reality, this is what happens in a job. You need to maintain other’s code, or your own in a year. It can be humbling to have to understand your own code in a couple of years.