How do you react when other moms make you feel badly about the way you choose to do things?

Recently a good mommy friend of mine just started letting loose about all sorts of things that I'm doing "wrong" (even though I know it's not "wrong"...Just different than the way she does things) and days later, I'm still feeling down and insecure about it.

Deep down, I know that I'm doing a great job with LO but on the surface, my confidence is shattered! Dang her!