Be fearless, by that I mean give it a try, don't be intemidated by others saying how hard it is. I took a class and that was the best thing I could do. the instructor was wonderful, explained everything and was there to say what I was doing right and wrong. If I had tried on my own, I would have given up on the first attempt.
One tip the teacher said in class was to get gloves. It has helped me a lot. Have your computer on and YouTube clips on fmq when you are doing it. Leah Day and Patsy Thompson are wonderful, recommend both highly. Also, free motion means just that, so practice without a pattern and see what you can create.
Have fun. And welcome to the fmq world.