Heavy Heart

I know that I am loved by God. I know that I am wonderfully made. I know that my husband adores me. When I am around certain groups of people, I simply feel like I don't measure up. I wish that all those material things that I say don't matter really didn't when I am around these people. I am tired of mentally comparing myself. I can hardly stand it. I don't want to feel this way. What can I do to change that?