I can't sometimes say my own name

I can't sometimes say my own name I have practised it a billion times at home and out of the billion times I never once fail, I cannot by any thinking fail and yet when the real situation is there I cannot say my name... It's quite shitty. I stutter mildly even without external pressure. I have been stuttering all my life but by teenage years I've learned not to stutter "openly" but more like sounding like I am out of words and everyone must think I'm stupid then. I have a brain cancer.