[beefjerkins]

- A LOT of practice. One of that parts of becoming a good programmer is learning about potential pitfalls and bad practices; what better way is there of avoiding these than by making these mistakes yourself and learning from it.

- Studying and researching best practices for not just your current language or paradigm, but others as well. If you've got experience with Java, look into other paradigms than OOP such as Haskell / Elm that focus on Functional Programming. This can lead to learning about new ideas of programming in general, which is a good thing as it exposes you to more tools that you can use.

- Making your own things. Find areas in your life that could use some automation, or perhaps use programming as a creative outlet; the more tools you make, the more practice and experience you'll get which leads to the first point I made.

- Cringe at your old code. If it's really that bad, it's likely you've come a long way as a developer, which is good! Reflect from time to time about why you originally wrote code a certain way, and think about how you would approach the same problem now with more experience.