The only way to get better at something is to do it more and more. There's no other way to improve.
So why is it that people give up at first try or don't make the effort to continue practicing?
Practice is boring. Repetition makes you drowsy. But if you reframe practice with fun you don't even need discipline.
Practice should be a chance to experiment, to take your camera out in the open to capture whatever you want, in whatever weird way you want. Think of “best practices” like Lower Thirds as mere guidelines.
Of course, in order to be considered professional you'll have to play by the rules. Imperfection gets ignored, no matter how much you practice.
Practice is what you make of it: dull, experimental, or just a step closer to the perfection needed to get recognized.
You don't need practice but you do need its philosophy.