Your quilts will get better! I've been at it for a few years only. I find I do my best work if I work consistantly so I don't get rusty. A 1/4" foot is a good investment. Also putting tape on the machine as a guide to feed the fabric for 1/4" seam. Slow and easy does it. My first experience with the church sewing/quilting group was a lesson in humiliation. I stretched the fabric as I ironed the Bejeezes out of it. I learned how to press rather than iron, learned the importance of consistant seams, and alternating direction of pressing seam allowances. Practice sewing straight seams on scrap fabric. Practice, practice, practice your sewing skills. You'll be fine!