I have never made a Lone Star quilt before but I think you need to make a small lap quilt or baby quilt to start. Preferably one with some squares sewn together so you get the idea of matching up the seams and sewing the pieces together. i'm not saying you cannot make a Lone Star quilt on your first try but it would be difficult for a beginner.
Freemotioning can be hard in the middle of your quilt. Depends on how large your quilt is, how large your sewing machine is, etc. You can look up videos online to help give you an idea. There are tons of websites and blogs dedicated to quilting and lots of You Tube videos. That is how I learned how to make a mitered corner, I could not figure it out from the description in the magazine I was using as a guide.