My sport of choice is Brazilian Jiu-Jitsu. The person who "tries his hardest on every second" is thought of as a spaz, and is inexperienced. Such people try to overcome their lack of skill with brute force. On an experienced person, it fails.

Part of any sport is knowing when to push as hard as you can. In BJJ, it means using your strength when you have leverage, and not trying to force something when you don't have leverage. I think that has transfer to other areas.