Give her lots of time to get used to her new home, the goats, you! Spend time with her, grooming her and mabe take her for walks around your place to get used to things, it is also a good way to get to know your horse. As for ground work, if you have a round pen or just a fenced space where you can start lunging her, as you are not that experienced yet you will learn lots from your horse, watch the body language, have a lunge whip, carrot stick and start working her on the lunge at a walk, change directions, make her stop, turn, just make her focus on you and make sure that you are the leader at ALL TIMES! I am sure you guys will get to know each other really soon and you will learn from each other! Good luck and enjoy the time with your horse.