Maybe set up a screen and Stitches can sit behind it, gently giving encouragement?
Or. Get out the manual Woman. Read it, like a book or magazine. Take it to the machine and read it again, slowly, touching the parts as it tells you about them. Then, get out some fabrics, basic stuff, quilt cotton scraps are good. Sew. Practice stitches, stitch lengths, and dare I suggest it, needle positions. Put feet on, take them off. Lather, rinse, repeat.
I was terrified of my newest machine, my first ever computerized and with an embroidery module to boot. I took my time, did what I suggested above and over the course of a week or so we got to know each other. I also keep the manual handy and use it often.
Ninety percent of my sewing is done with the default straight stitch and basic foot. It would be useful if you could just get comfortable with the zigzag too.