I would complete it. I always look at them as learning experiences. In fact the quilt in my avatar I threatened to through it away, but it was for my niece and she really wanted it. She does not see the mistakes and I really liked it once I completed it. I hope you will complete it and show it off when you are done. I will not let myself have more than three projects going before I will move on to a new one. The only reason I let myself have three is where I can go to workshops and learn how to do a new pattern are I need to make a gift.