When I first started I kept a 10/12" square of plain fabric ( layered up with batting and backing) I would have a go on that first, (for about 5 mins) then move on to what I was actually quilting, just to reinforce the feel of the rocking motion you may find that helps, as to the seams they will probably be harder to get through but don't stress yourself out if the stitches aren't perfect no one will notice, only you!!! Hand quilting is so relaxing - Good luck with it.