NOOOOO!!!! don't give up. take a break for the night. and tomorrow morning have a cup of coco and a chocolate bar. then do the dishes and then pull out the machine and clean it. then do a test run. You might be surprised that the feed dogs do drop. I have a cheep singer and a janome and the feed dogs on both drop. just check and they may be up but caught on something and not moving. try running the machine with out fabric and see if they move. hope this helps.