How can I deal with judgemental family members who believe I am living my life and raising my child wrong?

I am a single parent, a Christian and trying to raise my daughter the best I can..yes I make many mistakes along the way..and my family is very judgemental on how I live my Christian life and raise my girl. My brother is a Baptist and is very smug about how he walks his faith vs. the way I do.And the rest of my family just want to believe that my daughters anxiety problems are my fault. Her dad passed away last year from Cancer and she suffers from anxiety and seperation anxiety away from me. I don't know how to even be around my family anymore. They talk down to me, act is if their way is the best way and I am becoming very uncomfortable around them...Any suggestions??