Sounds like you are moving right along! Keep with it!
pick a spot on the target, and move my bow arm accordingly,
Just a tip, (and this is especially if you find that you are moving your bow arm a lot)you may want to try to keep the upper body alignment as consistant as possible. If you find that you need to move your bow arm left/right, then adjust your stance accordingly. If you need to adjust up/down, make your adjustment by bending at the waist. Try to keep your shoulders, arms (at full draw), and arrow all parrellel and pointed at the target.