This is a pretty long article about the Samwer Brothers in Germany. These guys are young and very successful business people. Read the article and see if you like what you read.
They seem to be very powerful and successful but I didn't read that they live happy lifes aside from work, success and recognition by others. Is this all you need to be happy? You have to have more success, more money and more influence than 99.9% of people that you know.
It's worth reading the whole article even if it takes some time because it will make you think about your career objectives.