This a reprint of an answer given for the same question a while back. You should use the search function for your questions because they have be answered before many times in the past. You can find your answers if you drill deep enough. Good luck with your surgery.
Aha, the sixty-four thousand dollar question! And the answer is: Crystal you need to go to your happy place, your place of Zen i.e. gardening, pets, poetry. family, religion, music. art any place where you can divert your thoughts and dwell in harmony. We had a class in stress relief believe it or not, in my program. I found it useful but results may vary. Try and find that one thing that works for you. Why do you think I write so many crappy haiku and terrible limericks. Good luck.