I think there is different kind of goals and passions. Ones that empower us, make us feel good, strong and balanced. These are our true goals and dreams. And then there is goals that are not our true goals, dreams and passions. When pursuing those false dreams, in the end we realize these things wasn't what we should do and we are not happy when they are achieved.
Thank you for your comment @lindiry! :)
What worries me more is anticipation of certain outcomes, expectations. When something does not work out exactly the way we imagined, the disappointment and unnecessary suffering we cause to ourselves.
Yes, our expectations are playing games with us sometimes. It's important to remember that the outcome we didn't expect might be actually way much better. We just have to see it..