Any time you create; it's possible you'll create the greatest thing ever. It's unlikely, but it has to be possible, right? Your favourite book or movie or whatever, it was created by a human, I'm pretty sure of it.
Those of us who call ourselves writers; I don't think the dream is ever to be adequate. We wanna transcend. Wanna reach in where it matters.
So what does it take? Do you know it when you've made it?
Even if you know, will everyone else? Will your girlfriend know you've written something transcendent? Will your English teacher see your brilliance? Will the Facebook friend who thinks you're a waster be moved by your written words?
That's the strange thing, the individuals don't matter. Everyone who puts you down or disregards you has the potential to be wrong. Likewise, the masses have a tendency to miss out on brilliance at every opportunity.
I guess the only thing that really matters with your work is going to bed knowing you've done the best you can. Because when you've done well, you feel good. Maybe five million people like it or maybe only fifty. Just know that whatever the amount, it's enough.