Make a strong connection with God
In order to be relaxed and peaceful, you have got to build a very strong connection with God. If you believe in spirituality, it will help you have a very good quiet time. When you are alone and there is no noise disturbing you, close your eyes and try to explore the person inside you. Think about the existence of God and how he is driving the whole universe. The feeling of having a connection with your creator is going to give you immense peace of mind.
Once you have complete faith in God, you will know that nothing in this world happens without the will of our creator. This is going to help you while you are in pain.
Do it in morning
The best time to spend some quiet time is early in the morning with fresh air, until or unless you are a night animal. This will set the tone for the rest of the day. Take time out for yourself to think and ponder as opposed to waking up and repeating the same hectic routine day after day.