wonderful that you are learning to quilt - you can have many, many happy times to follow. But, I'm sorry that you started with such an exacting pattern. There are so many corners that have to match. When you are starting, it is so easy to be off just the slightest from your 1/4" seams and that little bit grows with each piece. It will get better with practice. If possible, can you work on a different project for a bit? I suggest looking up a split rail pattern. This will give you practice with your seams but it can be a bit forgiving while you are learning. You could use the rectangles from this project or start fresh. Perhaps a small lap size quilt - use 2 1/2" strips (4 will finish to 8" blocks). When you sew the WOF make sure you alternate the direction of sewing to stop a 'bend'. You should get 4 or 5 blocks per strip, so you would only need to make 4 or 5 sets. This could be a quick and easy moral booster for you while giving you a lot of practice with your seams. Just remember to keep it fun - we all have a UFO that we will never finifh because it became work and was no longer a fun project.