My self confidance is not classical one.
(At least if you take stereotype of self confidant people).
For me it is conviction that after a long analysis I will reach right conclusin.
I doubt myself a lot and I am always searching for better way.
Because I doubt a lot I prevent problem from even happening.
I think that I doubt myself more then most people and this thread is my strongest proof for now.
If you ask me, this is the only way to be self confidet and have something to show behind it. From few examples I know that as soon you stop to doubt you are fuc*** up if your self confidance is this high.