Oh no, you must try to find something that will give you inspiration and keep your mind positive. I know its much easier said than done but its worth the effort. I think doing something creative can help distract you from sorrow. Artistic expression keeps me centered and I encourage everyone to indulge in it. I wish you the best and I hope you can turn the saddness around very soon.
To change mind gears: How about comfort from some of your animals? A walk outside? a bubble bath? I have some books and audio CDs that help me. And, I go ride my horse.