Hi Susan! Let me add my welcome.
I knit continental, and purl in a manner similar to Amy's continental purling video here on KH. She pushes the yarn down in front of the left needle with her middle finger, but I use my index finger.
Hang in there! It is always hard to change your technique, and it will feel horribly awkward at first, but you'll get the hang of it and come to love the speed and ease of conti knitting.