When I feel like I just can't figure out how to do a new thing, I take a deep breath and look around at all the people who can do it. Then I ask myself, "Are all those people smarter than you are?" They can't ALL be smarter than me, so I start trying the new thing again. In the end I always figure it out.
I'm sure you can do this. Just don't let it intimidate you. It's just another type of sewing machine with a few fancier buttons.
Don't you suppose the ladies who got the first treadle machines were a bit intimated, too? If they had not overcome their fears, and kept buying those new fangled machines, we'd all still be doing nothing but hand sewing.