Until you have the inner discipline that brings calmness of mind, external facilities and conditions will never bring the joy and happiness you seek. On the other hand, if you possess this inner quality, calmness of mind, a degree of stability within, even if you lack the various external factors that you would normally require to be happy, it will still be possible to live a happy and joyful life.
The discipline of suffering, of great suffering - do you not know that it is this discipline alone that has produced all the elevations of humanity so far?
Self-discipline, although difficult, and not always easy while combating
negative emotions, should be a defensive measure. At least we will be able to prevent the advent of negative conduct dominated by negative emotion. That is 'shila', or moral ethics. Once we develop this by familiarizing ourselves with it, along with mindfulness and conscientiousness, eventually that pattern and way of life will become a part of our own life.
What is the next step, the practical application? —I will answer that the absolutely vital thing is to consolidate your understanding, to become capable of enjoyment, of living in the present, and of the discipline which this involves. Without this you have nothing to give.