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.
Same idea with you if you dont think twice on what you will do, you will come up in wrong decision. If you are a positive person you can see a bright side of negative and difficult situation.
Also if your a positive person you have soft heart you wl always consider those people who loves you especially your family. You will always remember that their are people who are waiting and looking forward to you. And lastly if you are a positive you have limitations to your habbit that if you reach it you'll stop for a while.