Get your critic out of there by making it "not you." Pretend you are performing a play and it's an unfriendly theater critic or a bad reviewer on the book of your life :-)

http://www.nytimes.com/2006/08/31/th...=1&oref=slogin

Disassociating yourself from the criticizing element and making fun of it or ignoring it or whatever might get it to pipe down?