your brain doesnt know the difference between practice and the actual thing. it doesnt know the difference between taking pride in your code and taking pride in how you look. it just knows that you either are taking pride, or not. everything you do trains your responses.
how you do anything is how you do everything. cut corners in your life? itll show in your code. dont take time to fully understand certain trade offs? itll catch up to you. its important to train yourself on meta skills, not micro ones.
get good at learning. develop a good filter for bullshit. learn what makes you tick and become undoubtedly knowledgeable. workout hard. eat good food. itll reflect in everything you do.