I believe in destiny.
We all have the same destiny anyway. In the end, we all die. That's just how I see destiny. Destiny = death. Ok, so I really don't believe in destiny. I believe in death. And all the rest between birth and death is up to you.
The trouble with believing in destiny is that it boxes a person into what he or she can be. That's just not right. Anybody can be the best that he or she can be as long as there is hard work and perseverance. Of course, you have to use your head as well. Nobody is destined for something by sheer dumb luck. How many crown prince and princess were never crowned? A lot.
Destiny is just a word invented by the lazy people. One can change the course of his life if he / she tries hard.