Same and I think it could stem from past negative experiences which results in more careful thinking and not having your expectations up too high. I am like you, I see what every outcome could be and prepare for any one of them to happen. If it turns in my favor, then that is a bonus and a great feeling to experience. If it doesn't, then I will still be disappointed, but at the same time, I would have already sort of expected it to go wrong so therefore, the disappointment is not too severe.