This is a beautiful piece so do not give up. I saw in your picture that you do not have anything but your machine table there. If there were some way to put a table or ironing board or anything like that it would help. I use my regular machine and have done a queen size on it. It is hard but once you get the settings figured out it works. I put my feed tension on 0 so there is no pull from there and it takes time. You will feel so good if you hang in there and finish this piece. I also found that spray basting works better for me than pins. Roll both sides of your quilt and that helps also. Good luck.