I will heighten my life by helping others heighten theirs

It's not over until I (you) win.

Here's other quotes and sayings you can motivate yourself with. Practice only makes for improvement.

Your dream was given to you. If someone else can't see it for you, that's fine, it was given to you and not them. It's your dream. Hold it. Nourish it. Cultivate it!

Leap and grow your wings on the way down

Regardless of what challenge you are facing right now, know that it has not come to stay. It has come to pass. During these times, do what you can with what you have, and ask for help if needed. Most importantly, never surrender. Put things in perspective. Take care of yourself. Find ways to replenish your energy, strengthen your faith and fortify yourself from the inside out.

Life takes on meaning when you become motivated, set goals and charge after them in an unstoppable manner.