Don't feel bad. I started my quilt....which is king size, and I was doing 12 inch blocks. I made ALL of the blocks, then noticed they weren't consistently 12 inches....so I had to buy a 10 inch square ruler, cut them ALL down to 10 inches, and then because the blocks are smaller I had to make a bunch more blocks....yep I'm off to a roaring start! But I have it going smoothly now (famous last words, my roof will probably fall in tomorrow now) so I'm sure you'll get it going smoothly after taking a breather....