Have you had one small success today? Perhaps, getting out of bed has been the pinnacle of your day. Well, build on that. That one small thing is the beginning of the downhill roll. Take that small success and strive for another and another. Once you get the momentum going, those small successes will turn into bigger successes until you are moving so fast that nothing can hold you back.
If you woke up today and have experienced nothing but frustration and heartache, then keep going. Look for that one thing that has gone right and move in that direction. Take a look at what you did right to achieve that success then change your behaviour to match.
Above, all, don't stop. The only possible way you can lose is if you give up. If you choose to continue fighting, you will win. It is black and white, a choice you have to make. If you settle for what you have now, that is your choice. If you are not content, it is up to you to strive for something better.
The fight is never easy. Sometimes you will be completely exhausted trying to achieve what you want. When you are spent, stop, and rest. Recharge and prepare for the next round. Then, get up and continue fighting. As long as you never quit, you will always be moving forward.
You are in this world to make a difference - we all are in our own way. It's up to you to fight your way to glory, and once you achieve it, you will experience a level of joy, contentment, and fulfillment that if you had given up, would never know.