I think it is so valuable to set goals. Just remember to keep them attainable and realistic. Well, we all know that sometimes we set goals for a project before we have started it and then once we have started we realize our goals are impossible to reach. So, rather then giving up on the goal; change it! If it is job related it often takes more time than we originally anticipated learning it or succeeding. If you start you own business; there are so many unforeseen complications that business are constantly changing it up! Changing goals is never a bad thing, giving up is the only bad thing you can do.