Ambition

Define ambition :  " A strong desire to do or to achieve something, typically requiring determination and hard work.

Desire and determination to achieve success. "
    
     Ambition its priceless, its something that must run trough your veins on the life road to become successful. It the only weapon you have against anyone that's better than you, ambition makes the difference.
     When you fell you're stuck, keep in mind a word that speaks for itself : AMBITION