Practice, practice, practice, but don't expect perfection on storytelling. Work to perfection on wisdom. As I just related a minute ago, if your mind wanders a lot, it doesn't mean anything regarding your wisdom level, it means something regarding your concentration level. Wandering mind is opposite to concentration, but some people may wander a lot, yet every once in a while they develop some wisdom. Someone else is super concentrated yet may only develop a lot of aversion every time it's noisy and they can't concentrate.
So with storytelling, we do want to limit it, we do want to keep practicing, but as in one of the Suttas, the Buddha explains to a young, 16-year-old Brahmin priest how to reach the truth. He goes through various different things: going to visit a teacher; asking questions; listening to the teacher; reflecting on what the teacher said; putting it into practice, and so on, and gives the young 16-year-old a very, very guided way of how to reach the truth. The young 16-year-old goes: "Mmm. Very good, now I see Lord Buddha how to reach the truth ".
Now, this is one times in the Suttas of the where I can see the Buddha "laugh", have a bit of a fun time with the young 16-year-old, because the young 16-year-old has just said, "Now I see Lord Buddha how to reach the truth." The Buddha says, "But young Brahmin, that's not the final arrival at truth." So you can see the exasperation of this young 16-year-old, who just spent all this time trying to understand how to get to the truth. And yet now the Buddha says, "That's not the final arrival at truth." So the young guy goes, "Well, okay, how do you get to the final arrival at truth?" The Buddha says, "You must do what I just told you over and over and over and over!" Practice.