Unless you are some sort of savant, the only way you can get good at doing anything is to practice. Once you have practiced just about anything enough, you will get pretty good at it... You might not ever be a Rembrandt, but usually passable.
Once you have acquired the skill, it doesn't stay with you, you have to maintain it as well. What does that mean? Why, more practice, of course. The more, the better. But do you ever have one of those days? You know the kind I'm talking about...