You're Unstoppable - I chose this motivational song because of the lyrics. Being unstoppable doesn't mean you won't meet failure or setbacks. It simply means that even in the face of challenge and obstacles, even when you've failed and fallen so many times, you still get back up even when getting back up is hard to do. That's what being unstoppable means, that nothing will hold you down because no matter what, you will find a way.
The decision you make about what to do when you fail over and over, whether you will continue or not, will determine how your future will be. No one ever said success is easy. In fact, it's down right hard. The obstacles and setbacks can be down right brutal. This is why you need to go after your goals with intense determination because only then will you have a chance at obtaining your goals. Believe in your dreams but more importantly, believe in yourself.