If one always wins, then with each new obstacle you will expect to win and no longer try. By coming up short, it gives you something to work harder towards next time. By working harder time and time again, I've achieved some pretty cool things thus far. Just sayin' (here, here and here).
I am a firm believer that everything happens for a reason; so I'm focusing my efforts on those things which have patiently taken a back seat, and continuing to be open to new opportunities.
Or as my younger Sister put it, "You can keep focusing on being awesome!!!" (Yeah, there might be a little bias there).
Just remember tomorrow is another day and you never know what is waiting right around the corner. And yes, I tend to be a glass half full kind of person [but that's me]....how about you?