Whether it is in the boxing ring or in life, the shame is never in losing. Everyone loses at one time or another. It's a part of life. The shame comes from not trying, not giving it your best shot, at whatever it is you do. Don't be afraid to lose and if you do lose, don't whine about it either. Don't make excuses. it's okay to say :"Yeah, I lost but I'll get him next time!" We never forget the ones that never stopped trying, we forget the ones that stop trying. If you have to dig deep, then dig!
Just so you know, about 99.99% of that is directed at me but feel free to take it to heart too. Sometimes we need to give ourselves a pep talk because if we don't who will.