10 Quilts in isn't very much. You need to cut yourself a break! Free motion quilting is a skill that improves with lots and lots of practice. There is really no other way to improve, except to just keep at it. I will say that I did take a class which helped me tremendously. Is that an option for you? Not an online class, but one with a real live instructor that can give you feedback? Each quilt I make I continue to learn something; not just about patterns & piecing, but also about the quilting process too. Not sure if getting a mid arm in necessarily the solution; It is still FMQ in which you are moving the fabric under the needle. I've been quilting for 7 years now and I feel OK saying that I can do a decent job on FMQ. I am better than some, but not as good as others, but I am usually happy with my quilting in the end. Hang in there and keep practicing. You'll get there
