if today I make a choice to do my job poorly, have fun, play, and relax, then I will inevitably lose to someone who will work hard and disciplined at this time  

and this thought comes to me every time I turn on a computer game, or have a drink with friends

And I understand that I don't want to lose, I don't want to be a loser

And I won't be one

A combination of my sheer indefagitability, and my unequalled perspicacity makes me a feared adversary, regardless of field of endeavour

Stay focused on your goals and priorities, and you will never be a loser. Discipline and hard work will always lead you to success. Keep that mindset strong, and you'll achieve great things. Keep pushing forward!