I write because I feel compelled to, above all else. I send the better pieces to magazine editors, usually with negative responses.
I just keep on doing it because writing is the one thing [the ONE thing] I think I'm any good at.
And, it's my primary form of communication. I don't really relate to people very well in person. My friends will testify to this.
The sad reality is: people on lit kicks probably know me better than my friends in life. Sad, but true.
It's because I can get my mind across in written words better than I can with spoken words.
As for the drive to keep doing it...
I don't know! I don't really have any drive/ambition whatever.
I feel a need to write. Everything else is just background distortion to me: jobs, money, rent, women, sunshine, fun, music.
I need to write. I do everything else when I'm not writing.
But writing comes first.
This probably isn't the kind of answer you're looking for, is it?
I don't really do anything to take my work to the masses, other than post it here and send it to editors.
So, it's an answer of sorts but not really...sorry :-|