It is not easy. No relationship is and just because you have the final say in everything doesn’t make it simpler. If anything, it makes it more complicated. A good slave is intelligent, able to see things you cannot and able to keep you from spinning a thought out of control by simply having another POV. A good slave is a valuable resource, like a Google you can fuck. The challenge is that a smart slave must be free to speak her mind and feel that what she says is being heard but she also needs to feel her Master is beyond manipulation by anyone including her. So how do you do this? How do you listen, learn and take in that valuable information without coming across as doing whatever she wants?
Good fucking question.
Things are not black and white. They are not as simple as there is one and only one right way. There are many ways to skin a proverbial cat and you have to be comfortable with that point. Just because it is the way she has always done it does not mean it is the only way it can be done and just because the way you have decided to do it is different and makes her uncomfortable does not mean you should change your mind. Her life with you is just that, with you. it is not her old life. She does not get to make the decisions she made before. This can be a bitter pill to swallow. She may not like it at all and be ready for long periods of silence as she shows you how seriously upset she is but if you are confident in what you have decided, if you are comfortable that what you are going to do is what you would do with or without her advice then hold your ground.
The fundamental idea here is that she has to know that you can be trusted to make a choice. She cannot see you being pushed around.
There will always be arguments, she will win some of them (for the love of God, do not let her know that!) and she will be right sometimes even when you decide not to do what she thinks is best. No matter what she has to see that you are thinking about the future, that you are making choices that are for the best of all involved and that while she is being heard, that her feeling are not swaying how you act. You are doing the best for you and her and everyone else that matters and sometimes the best thing hurts feelings.