I think it is easier to draw a design from a template, that way you have a path to follow and one less thing to worry about (where do I go next?). It is like driving a car. You know the difference in your car when you drive 20 compared to 70 mph. Find a speed that you can reach again and watch how the machine moves the fabric. That is the speed you want to find again and then move the fabric at the same rate. Don't feel you need to go fast until you have a bit more confidence. I do my FMQ at what I would call slightly under medium speed. Slow and steady is best trying to get consistent length in your stitches. Try to relax and have fun. You didn't learn to drive on the first day. You kept practicing whenever your parents would let you.