Sumiko Welcome!
The answers above as always ... right on the mark. I can only add ... keep those practice squares!!
After you feel comfortable with the general "feel", try different threads (each with appropriate needle), and label your scraps with thread type, needle used and tension setting. Keep those scraps as your FMQ encyclopedia!! hint: as additional practice you can write the "label" with FMQ!!
Also experiment with different thread weights in the top and bottom, and here it becomes very important to keep notes on needle and tension settings.
Now GO PLAY!
