I've been quilting since 1992 and I still have cold feet! I still consider myself definitely not in the advanced stage yet! So far everything has turned out okay to me and others seem to like what I do. My first quilt was HUGE, large enough for a spread so that I had time to get the experience I needed to quilt it.
My sister gave me a wonderful little book with simple blocks and how to's or I still wouldn't be quilting.... I am blessed with coming from a family of quilters on all sides. Just keep plugging! You'll be fine!