If she is a normal dog, she is going to respond to you if you will learn how to train properly and then actually train that way at least twice a day - more if you can. If you work, you can get in extra sessions weekends & holidays. You might want to have her vet checked to be sure she is normal as to her response to others' direction(calling her, etc.) & has no problems. If she is normal, once you learn how to train properly, are systematically teaching her you are the leader in your team & step-by-step approach both with a plan, she will begin to respond to you. Even at night, she will come - but you have to work up to her responding first to the easy things & then eventually she will learn to even come even when she doesn't want to and in fact is having a ball doing something else.
When you learn how to train properly, she will respond. Even "hard-headed" dogs learn when trained properly by a person they see as a leader. Every good, successful trainer says they must first train the owner how to train.
What books have you read on positive training? What have you learned about the concept behind it? Reading about training and leadership - or listening to an audio book, on training dogs from someone like Victoria Stillwell will teach you & set you up for success with her. There are many books teaching positive reinforcement.
If she is normal & healthy, it really is up to you whether or not she responds correctly to you. There really is no magic bullet, special secrets or simple answer to dogs who want to be boss, fail to respond to commands or are hard-headed other than learn how to train correctly, go step at a time, train several times a day with love, patience & fun and keep it up.
__________________  Jeanie and Tibbe One must do the best one can. You may get some marks for a very imperfect answer: you will certainly get none for leaving the question alone. C. S. Lewis |