You can only sell your integrity once. Self respect is invaluable and keeping your integrity intact is a prize to be sought and cherished. The temptation to tell your boss, your constituents, your mate or even your parents what they want to hear will be great. Resist that temptation, as it's a very slippery slope indeed. Seek and reward balance - not workaholism.
Workaholism is every bit as addictive and damaging as alcoholism and drug abuse.
I should know, I'm a reformed workaholic - and I admit to falling off the wagon occasionally. Finally, find something to be grateful for in every day, every experience, every person you encounter. You see, one step towards being happy, truly happy, in life, no matter what your circumstance, is to cultivate a grateful heart. It may sound corny - but I guarantee if at the end of each day, you take a few moments to write down 5 things that you are thankful for, you will start to look at the world in terms of all that you do have, not all that you don't. The glass become half full, at a minimum, and you realize that the daily ups and downs needn't control your emotions or your self-worth.