I know what you mean! I tried that make a quilt for each month last year. I decided that I'd make one each month. I was instantly behind! It was a lot of work, of course the wall hanging patterns I had were pretty big, @ 24"x36" for the background with appliqued "picture". I still want to get them done. I have 2 completely done and one done, but not quilted and another with all the fabrics picked out.
Maybe we should set a goal for having all the blocks done in 3 years and be happy with four monthly quilts done a year? At least in 3 years it would be done, instead of still being a UFO!