I have one of those fanny seats to hold my frame as well as a wooden tapestry frame picked up cheap on a home made base. This I can adjust in height and angle to hand quilt. Barbara Chainey is a hand quilter who has a blog which may show how she does it. Can't remember her friend who is also a hand quilter. They both set up fabric differently but have wonderful results.
Please ensure you are sitting comfortable so no aches else where and go slow and speed will come.