It's like any other learned skill....practice, practice, practice.

FMQ does take practice. A good way to practice is to FMQ on placemats. They are small and easy to maneuver and then you can use them later! I took a class and learned a few great tips that help though. Work in a small square area, working in a clockwise motion. Use quilting gloves; set your machine with a slow speed, and keep pressure on foot consistent. Most important, remember it might not be perfect at first and that's ok. Practice will help with consistency of stitch length. Hope this helps!