Yes, I agree with you that if your positive all things will come is positive. I remember a situation that I saw a situation that there two set of people who are playing in a casino. One is a positive vibes just enjoying the game and other is the negative vibes who take the game seriously. As the game goes by the negative is really angry when he is losing and he reach the top that he bet his everything and lose it in an instant.
Lesson learned: dont let negative vibes to destroy your everything because it may leads you to a decision that you didn't think it two times.