I would put this aside for a while. Your pieces aren't "ruined" for good. Once you've gotten a little more experience with quilting and had time to put aside the frustration, your creative brain will kick in. An easy pattern to start quilting with is the Yellow Brick Road or one of the Gumballs sold by Stitchin Heaven. Dot Collins also has a pattern called Tossed Salad that is very forgiving and fun to make. I can put you in contact with her if you decide you want her pattern. Those pieces will take on a new life as you move along in your quilting journey!