But in a Web diary posted to the liberal online community Daily Kos on Monday, Sheehan said she was exhausted by the personal, financial and emotional toll of the past two years. She wrote that she is disillusioned by the failure of Democratic politicians to bring the unpopular war to an end and tired of a peace movement she said "often puts personal egos above peace and human life." Sheehan warned that the United States was becoming "a fascist corporate wasteland," and that onetime allies among Bush's Democratic opposition turned on her when she began trying to hold them accountable for bringing the 4-year-old war to a close. In the meantime, she said her antiwar activism had cost her her marriage, that she had put the survivor's benefits paid for her son's death and all her speaking and book fees into the cause and that she now owed extensive medical bills. Casey Sheehan, a 24-year-old Army specialist, was killed in an April 2004 battle in Baghdad. His death prompted his mother to found Gold Star Families for Peace. But in Monday's 1,200-word letter, titled, "Good Riddance Attention Whore," Sheehan announced that her son "did indeed die for nothing." "I have tried every since he died to make his sacrifice meaningful," she wrote. "Casey died for a country which cares more about who will be the next American Idol than how many people will be killed in the next few months while Democrats and Republicans play politics with human lives. "It is so painful to me to know that I bought into this system for so many years, and Casey paid the price for that allegiance. I failed my boy and that hurts the most." "I am going to take whatever I have left and go home," she wrote. "I am going to go home and be a mother to my surviving children and try to regain some of what I have lost. (CNN) Related: 94 (out of a total of 100) U.S. Senators did not read the pre-Iraq War Intelligence Report. See, "Records: Senators Who OK'd War Didn't Read Key Report."