Thanks so much definitely will try it
You can slalom between cones by using your voice, your seat, your legs, but not your hands, you can do the same with ground poles. Once you are at ease with these exercices, you can do the same with small fences.
To have your horse to have his head low, you have to use your legs so that he carries himself, you can work on circles, don't forget to open your inside rein so that the movement forward isn't stopped.
Hope it helps 🙂