Sometimes it helps to think of your new partnership as being between you and a new friend who doesn't speak your language. Time and patience is the key. She has had lots of homes and lots of different languages to try and grasp.
Ground work is essential and skipping it or going too fast will leave the both of you frustrated. She needs to learn not only your verbal cues but your body language as well. It may help to keep a journal of what you are currently working on. Keep it simple with 4-5 basic things and work on these every day for a month. (I actually have them on a 3x5 notecard that I keep in my back pocket as I work with my horse). Remember- you may be bored with it, but it's new to her. They are building blocks, so she will need to understand them completely, respond quickly-quietly & consistently before you can move on to other things. Do them in the arena, in the field, every place you can think of. If you get stuck just get creative and try to "explain" it to her another way. This will help you understand how she learns best.
Another great tool to help you get started is to determine her personality (see http://www.freewebs.com/mypnh/Horsen...e%20traits.JPG
"The Right Brain Extrovert needs safety. Never push him past the threshold until he's calm. You will need to retreat and to interrupt the pattern. You must have a strong focus and must match the horse's high energy level. Give him a job to accomplish to replace his fear with something positive. He must think of you as his "safe place."
The Right Brain Introvert needs comfort. The worst thing you can do is push this horse before he's confident. You'll ruin his trust in you if you push him before he's ready. Taking your time is important because you'll need to wait on this horse to process things. He needs to believe in you.
The Left Brain Extrovert needs play. He craves creative, imaginative tasks and can't stand to be forced into anything. Because he hates to be bored, you'll need to speed things up, be enthusiastic and come up with variety in your lessons.
The Left Brain Introvert needs incentive. There are plenty of ways to offer incentive without "bribing" him. (Think rest, grazing, treats, scratches.) This horse needs to have a purpose and wants to go somewhere. Riding circles in an area with this horse will lead to resistance and defiance. Use reverse psychology for best results."
*although I'm not a "fan" of Parelli, this tool really does work!
Good luck and let us know how things are going!!