Here are my suggestions: tale what you can use and leave the rest. =)
Work in an area with as few diatractions as possible, for you and the horse.
Keep your body "quiet". By this, I mean really focus on your whole body, and only use the parts you need to cue your horse. And pay attention to your posture. Make sure you aren't leaning to the side or forward or backward. And look where you want to go.
Instead of solid leg pressure, use a series of bumps. Sometimes solid pressure just gives the horse something to lean against.
Keep your rein movements small. Pick your hand up slightly, because you don't want to drop it below the height of his withers, and move it to the side just enough to lay the rein on his neck. Shouldn't be more than two or three inches.
Until he's more solid with the cue, braid his mane so you KNOW he can feel thay rein on his neck.
Kai made a great point about the dressage training. I even found that taking dressage lessons improved all of my riding quite dramatically.
Good luck! Posted via Mobile Device