Make the foot to bear squarely on the needle plate, and the feed square to the presser foot.
Stitching can be done more easily on the right of the presser foot with the bulk of the material lying to the left.
Learn to raise and lower the presser foot on a piece of brown paper, and to stitch without thread.
A type of retractable thimble or presser foot was used to hold the fabric down as required.
Loosen the tension on the presser foot, use fine thread with light tension.
Never try to draw the cloth under the needle any faster than it is pushed along by the feed plate under the presser foot.