I am in sort of confidence

I am in sort of confidence
to perform those tasks, in which
once i was named, as brilliant..

Is this is the, impact of negligence
to update those activities which is
needed to sharpen, my intelligence..

There is not so much difference
in my basics, about those tasks
that i can swear, without reference..

Then, what is that fact, which influence
the acts of my, lack of performance
sure, this is b'coz of my over confidence...