I'm trying to learn lessons in dealing with frustrations at the moment! My sewing machine arrived back late Thursday. On Friday I started using it, only to find my machine now has problems. It went to the technician in perfect condition, only needing its annual 'grease 'n' oil change'. $149 later, it now is acting like a chaff-cutter, so my machine is no longer under its pretty cover in my sewing room: It is such a nuisance having to take it back - just getting it there is a big enough…