I myself am a firm believer in exercise and getting lots of support. People keep telling me, get on with your live, you are only 52 and still attractive. Its not that easy, loved him too much, he was my live. I love my job, but turn down all social functions, its like I am in a shell. I am raising 3 young boys alone and am scared.
People are very supportive and have lots of ideas.
Also, try some of the exercises in the ME section of Psybersquare. Many people have found those helpful, particularly the Self Esteem Workshop and the Gratitude Workshop. I myself am a firm believer in exercise and getting lots of support.