By choosing the world to be exactly as it is. By not fighting reality because you really have little choice, if any at all. The world will stay as it is. When you have taken control over Self, you will feel better. As Self gets control over the universe, Self has an unbelievable feeling of contentment.
Self creates beliefs based on the minds realistic evaluations of the universe.
Self can change them by conquering your old beliefs but your Mind will fight you even harder. The Mind may let you accept yourself but it has so much invested in its evaluation of other and the environment that it will resist change. The Mind has hundreds of prejudices, expectations and conclusions against any attempt to change. In order to achieve inner contentment the Minds old belief system must be defeated. If your old belief system is not defeated, you will always have a feeling of discontent.