The bottom line on attitude is that a good one helps to increase your possibilities, pessimists usually get what they expect so do optimists. Believing in yourself increases your chances of success, looking for the positive in every situation helps you see opportunities that you would otherwise miss.
Being positive with people prompts them to be positive with you- and individuals who interact well with others have a leg up on people who don't.
If you desire to change yourself, then start with your mind and then your attitude. Believe you can improve, that you can change into the person you desire to be.
