In my life I have seen a good number of successful people around me. They have made it big in their respective professions. They had that element of winning streak in them. As a student of life I also tried to imbibe those qualities from them.
Courage - This one important trait gives you the rational belief of standing against all odds.
Conviction - If you don't believe you can't do. You have to convince yourself first before making it to others.
Character - Here I mean humbleness. One thing is for sure Success and Humbleness are symbiotic.
Commitment - Perseverance in what you are doing is the basic ingredient. You have to love what you are doing or learning to do.
Courtesy - After all we all are humans and this is the interpersonal trait which is inevitable component.