Remember that when you're all alone and all hope seems gone, when that moment comes where you want to break, I want you to remember that life goes on but you chose how. That you have a choice...chose to live life. Dreams will never come true by themselves, they also wont surface without ambition and passion. Understand that after you've been depressed, you will appreciatte true happiness so much more and you'll know not to throw it away. The world is a wonderful place, but the people on it are selfish and simple minded.
So know like always you have a choice. Do you lift yourself up and do somethng, or do you end up looking like the rest? I believe that things are what you make of them. A pile of wood can easily be crushed and burned. But with passion and ambition you can build a sculpture that will amaze the world. It can still easily be burnt, but its your job to protect it. This is life, and you only have a certain amount of time to live it. Every second that passes is a chance to make a choice that can change everything...everything.
I know its hard, but do yourself a favour and just start at it. You cant just be at the finish, you have to run, jump the hurdles and race for it. But before that you need to practice and prepare. If you start with these two the rest will happen alot easier. There will always be competitors, people who trained harder and run faster. But dont let this get you down. It could turn out that the race, the event and the pleasure of meeting all the competitors could be the biggest reward. Anything could happen. Its your choice.