Is being competitive from God? You know ... the whole life is a race thinghy, you have to finish first, always run to be better(even when you get tired or exhausted) , be the number one, etc.. This chase after success. Is it of God?
Forgive me, but there's some ideas or assumptions here that need clarification. After all, St. Paul uses the metaphor of a race to describe the Christian life.
There's nothing wrong, ISTM, with striving to do one's best or better, in any endeavor. Who goes into something determined to be mediocre?
But if you're competing with other people, or just to have the most toys, status or recognition, so that you can feel better than them - well, I'm sure you know the answer to that one.