Returning to serenity requires minimalist action. Take the very next step. Break it down into something so small that you look silly by not doing it.
I learned to embrace Stoicism, since its principles of living have helped me become a better person capable of enduring the hardest challenges in life.
I have been studying the work of Alfred Adler. He talks about self-reliance and how our personalities take form depending on our reactions towards life.
As Stoics, our motto is to "Live According to Nature". Seneca talks about this in a lovely manner on Letter from a Stoic.
Most that have achieved enormous success did not conform. All great founders are well-mannered misfits. None of the founders we back are ordinary people.
As success comes in your life, it is easy to be trapped by your circumstances and become slaved into a reality that you must do more.
It is all about the journey, not the final destination. Life is a daily journey to the path of abundance and moderation.
If you are busy, you are not in control. Once you start being successful, say either "Hell Yes or No". Start saying "No" more often and you will live in peace.