I draw enjoyment from writing songs and so obviously the idea of being a singer/songwriter appeals to me but I have one thing bugging me: the idea that there are way too many singer/songwriters out there already to a.) make a living doing this b.) get noticed. And most importantly c.) say anything truly original.

You could have a million of the most beautiful noises ever but all of them at the same time just makes a really loud ugly noise.

You get where I'm coming from? Thoughts?
"His clothes are dirty, but his hands are clean" - Lay Lady Lay
I see exactly where you're coming from.

Good analogy; regardless, one sound can unify them all, so to speak. Keep trying; you'll find your voice and a reason for it.