I found that starting with stencils, I also took a class at a local quilt show, but haven't mastered pantographs, made things easier. I also practice everyday with dry erase markers on page protectors. I printed pics from the internet and practice tracing them over and over. I practice this way for about 30 minutes a day (it's my lunch hour). I try to figure out which direction I need to go so that it is continous and without overtracking and lifting my pen.
I also found that I work better from the front of the machine, rather than the back.
Another thing that helps me is that I put on soothing music, it helps me relax. Try keeping the elbows in next to your body, and shoulders relaxed.
You will be amazed that the more you practice the better your will become.
Good Luck I know you will get the hang of it.