I believe that life is 10% what happens to you and 90% how you deal with it. If you want to do something and you set your mind to it, steping out of your comfort zone and making every effort, you WILL be successful.
Of course bad luck can happen to anyone, but I believe what seperates the successful people from the rest(although everyone's ideas of success will differ) is effort! Start thinking more positively and do what you want to do.