I hate that you are so discouraged. All of the suggestions are great. I think you should put it away for awhile and start on something else if you can. It is taking up so much space in your head right now you need a break from it. Once you have been away from it for awhile, taking out the quilting won't seem so awful. I am like Prism99 as I starch my fabric heavily. I have found if I pin on carpet the carpet has too much give in it and "bends" the fabric too much. Don't give up, you will find a way to get this done now and in the future.