Man is born in a battlefield. Man will have to deal with challenges. Now, it is upon you which challenges you choose to deal with. You could either fight several miscellaneous, worthless wars—that cannot really even be called as wars, call them skirmishes, squabbles—or you could devote yourself to the one mighty project that befits life.
If you are not committed to that one single project, then it is obvious that your time, attention, energy, will all be dissipated in a thousand directions. You will not even realize, and life would bleed out of you, like a man who has a thousand cuts on his body bleeds to death.