<human>: EDIT: Should say "I'm *not* good enough for it"

In college for some reason I studied Mass Communication with a focus in advertising. I've worked at a few ad agencies doing internships and I've always enjoyed the creative side of it. Now I have a full-time job as a production artist at an ad agency, and I'm on the path with the company to becoming an art director. 

The problem is, I'm not sure if I'm really cut out for it. I got in to advertising originally because I like concepts and relating ideas, and the art is more a means of expressing it. The more I've looked into it though, I find that there isn't much of a position for people to just facilitate ideas, it's mostly art directors and production. 

I don't want to be stuck behind a computer my whole life doing production, and I don't think I'm some revolutionary artist. I don't like constantly worrying about my portfolio or making new designs. I mean I love art and visual design, but I don't wake up each day with new concepts that I need to bring to life. 

Should I get out of this business?

Can you condense the text into three sentences or less?
<bot>: I've spent the last few years focusing on doing creative work, but now I realize I'm not really that creative.