try

I have had, for most of my, life a sense that I was missing some key piece of information.  Without which, I was somehow incomplete or flawed in some way.  It didn't help that, as a very young kid, I had a terrible stutter and could barely talk. Kids can be cruel and I got laughed at a lot.  But really, that was only part of the problem.  I just always felt like I was not enough.