It's a little something called passion. Passion drives you to keep trying at something, even when it gets sour. This is all you know and all you'll ever know.
If some people are better at something than others, to me that means they aren't DOING IT HARD ENOUGH. Or there's an outside factor that's botching it up. In the words of Einstein, "Everyone is a genius. But if you judge a fish by its ability to climb a tree, it will spend its whole life thinking it is stupid".
It's not worth comparing to "I do better on tests than some other kids and I don't study". That just means you had a better upbringing than them til that point, while they were out playing football or whatever, you were reading or learning.
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