I haven't made much progress on turning the negative into positive, but what I have begun to pay attention to is why. Why am I calling myself stupid or saying I can't do something.
It usually comes down to fear. Fear of something new especially. Fear of taking the chance and failing. If I convince myself I'm not good enough, then I relieve the anxiety caused from the fear.
Plus if I fail, I won't be surprised. Then I can say, "See? I told you."
Then there's that critical voice I grew up with---yack-yack-yack. Speaking of my mother...I really need to call her.