In every work environment there is usually a clear difference between those who have travelled around the world and immersed themselves in numerous cultures and ways of life, and those who have simply progressed from school into employment.
Ambition is a worthwhile virtue to have; one which can help propel you very far in life, as long as you are realistic with regards to what it is that you want to achieve and what you want to do with that success. In other words you need to really understand why you want that success and how you feel it will benefit you in the short and long term.
Being able to look at the bigger picture is key to having that degree of insight which will help you find a healthy balance between relative happiness or contentment, and ambition which can enslave the spirit of the none profound thinker.
Too many people stumble through life never questioning the bigger picture. They stumble into careers and then decide to make something out of it because they are in it, or have suddenly discovered that they have the talent to excel doing what they are doing.
Being good at what you do does not necessarily mean that you are happy doing it, though being happy doing something can be vital in bringing you the success you crave for. In fact, sometimes being good at what you do just invites boredom into your life. So rather than wondering through life just existing, why not take your time to find out what you really want out of life. Volunteer in Latin America, for instance. It might just be what you need to help you get your act together.
...Or, even more specific, volunteer in Costa Rica. It is beautiful and highly recommendable as a holiday destination and somewhere to work. We all need a challenge in life. Living on the edge, slightly beyond our comfort zones is what keeps us ticking in the right and positive direction. That direction is the where you will hopefully find success and happiness. We get bored or miserable and find our self depleted of esteem and motivation when we do not face challenges in our lives.