I always hand quilt, but I do Big stitch quilting using a sashiko ( or other big eyed ) needle and perle thread no8. However, the process is the same.
I never use a hoop but if you do, make sure the fabric is looseish and not taut as in embroidery.
Mark out your pattern ( if necessary ), start from the middle ish, and concentrate on the evenness of your stitches rather than their length per se. Don't worry about "so many to the inch" but if you do, remember that they count both back and front stitches so it's not as daunting as it seems.
I find it quite restful and it gives me far less stress than machine quilting, but, it seems to take forever
and sometimes I'm guilty of not quilting closely enough
but I'm sure you're much more dedicated than that
You'll do it fine