The worst losers would not be those who lose against enemies or rivals, but those who lose against themselves. -Anonymous
That being said, one who constantly gives in to his / her impulses would be categorized as losers. One who can’t say no to the vices appear from dark depths of heart.
It is the Achilles’ Heels to any person’s struggle to become mature. In fact, one tends to analyze or introspect himself / herself when defeated by others, but not when defeated by self.
So, are you a loser or winner against yourself?