the first reason that positive thinking will lead you to success, Positive attitude increases your faith in your abilities, and brings hope for a brighter future. Positive thinking will make you appreciate your own. Don't contempt yourself. If you insult yourself what you do, it will never succeed. But if you think positive think i need to do. i can do it, or I have enough, I think what you are doing will come out best. If you don't believe in yourself, then who would come to believe in you. Believing in yourself and in your abilities . You must show more self-esteem and confidence .