I buy most of my pantos from Quilts Complete. They have a website you can check out.
It does get better with practice but before you start, follow the panto with the light only and the machine turned off (not stitching) several times until you feel proficient. I do that before each stitching session, even mid-quilt, and even with easy pantos or those I've stitched before. Sometimes I only need one pass, sometimes I need two days, lol.