My Brain

I think too much.  I over analyze everything.  I want so much to be loved that I think I assume that people think the same way about me as I do about them.  Feel the same way as I feel about them.  Then when I burst that bubble it sends me into a depression.  I do it to myself.  It's not anything anyone has done to me, it's what I do to myself.  I want to not do this.  How do I not do this?