I do this, too! I have finally broken ties with my best friend of several years because I realized how critical she was of me and how much I took on that criticism. I'm tired of being called "too nice," "too forgiving," "a doormat," etc. I like that I am a kind and open person, and it doesn't have to be a bad thing. Ironically, I found by breaking from her that I am tougher than I thought!

I think the key for learning to trust other people is learning to consider and trust your instincts. Not all of them, but those that make logical sense and also feel right.