Is there a trick to using the Sew Easy? I bought one some time back and found different stitching heads at HL, but everytime I try to use it I get very FRUSTRATED!!! I also have the mat and the special needle. I have tried textured and plain cardstock and can't seem to make the stitches go thru the paper. Is it supposed to be like that or is it supposed to actually pierce through the paper?? What am I doing wrong?