Great stuff here. Practice, practice, practice. Repetative drawing on paper does help with muscle memory. Don't sweat the small stuff - if it doesn't look so great the first block or two, keep going!! Once the whole quilt is done you'll be much happier, and the little individual "mistakes" won't be as noticeable at all. Spray basting is nice for all size quilts - no pins in the way to stop and remove when it's inconvenient. Stop to reposition hands at a corner or point rather than on a curve - jogs and wobbles and stops/starts are much more noticeable on curves. Don't let your hands move TOO far from the needle - work to maintain control of the section you are working on, it'll increase with experience. Following a marked line is difficult at first, slow down and adjust your hand speed - it'll get MUCH better the more you do it. As mentioned above - don't sweat it if you don't stay perfectly on the lines, either - once they are gone noone will know. Loops/meandering/free play is usually more satisfying to start with. Aways do some practice/warm on the same materials as the quilt you are beginning so you know how everything behaves before you get on the "good stuff."