The 29-year-old singer, who received the Contemporary Icon Award at the Songwriters Hall of Fame 46th Annual Induction and Awards, said she is only in her "infancy" as a writer, reported People Magazine.
"I feel that I have a lot of work to do, as personally, I feel extremely unaccomplished as a songwriter.
"As my heroes have done some things that I can only dream of, I feel very in my infancy as a writer, and I think you for just... At this point in my career, I've had some ups, I've had some downs, I've had some in-betweens, that you've chosen to honour me for the only thing I know I have, which is my heartbeat, which is that I write songs," she said.