If you're like me, you also discovered that the sewing skills you already had are most helpful, but the degree of precision required in some aspects of quilting is greater than in things like kids costumes, for instance. I had gotten really lazy over the years and now am having to pay much closer attention to stitching perfectly (Ha!) straight seams.
On the other hand, I'm not intimidated by bias seams, which I hear all the time about how difficult or scary they are (why?).
Welcome to the wonderful world of quilting!