Im not sure if this is a stupid question or not, but i won't know if i don't ask so i just go for it.

Let us say i have a lucid dream but i turn that dream into the worst nightmare with all the things that ur scared of (those that can happen in real life and those that cannot) and u could overcome all those fears, or atleast be in full control of it in like 100-200 lucid dreams. (sounds a bit crazy, and im not planning to do this. But it is a theory that got stuck in my head)

Is it possible that u would be in complete control of ur fear in real life aswell? ofcourse i don't think ur fear will be complete gone as it is a survival instinct afther all. But even though u still would feel it. could it be that it wouldn't even effect u one bit? Cause u experienced it so many times on mutch worser things in ur dreams.

And in addition to that in ur dreams ur emotions are stronger what would make the fear that u experience in reality compare even smaller to the ones u feel in ur dreams.

My point is: is it possible for a human being to be in complete control of ur fear (and other emotions as strong as this one)

I hope u guys know what i mean, my english fails sometimes when i try to explain things.