Unsuccessful people often have their attention focused on problems and always seem to know all the reasons why their life is going poorly. Successful people take full responsibility for both their wins and losses. Talk to any really successful person, and you'll find them to be frank about their past successes and failures. They don't choose to play a victim role. They see life as a game to be played.
Successful people are also doggedly persistent.
His business plan was turned down over 1,000 times. I have observed that successful people are successful because they believe themselves to be. They don't base their feelings of success on past experience, but rather, they create that feeling with their imagination. Imagination is the source of successful endeavors. The wonderful thing about imagination is that it is available to everyone.