I used to wonder if I'd write better if I had more scars. From this question came my belief in living life in almost a hedonistic way because it gives you perspective.
In a fiction writing class we were asked "What makes a story?" We decided that at the very least, some change had to occur. Well then, what constitutes change? I said everything. Any experience, no matter how small, changes you, and I think that's where it starts. I still believe it to be true.
On writing well? I have no idea. For now, I'm more of a reader.