Coping is the management of the emotions and their intensity so that your MI does not get worse and so that you can live a drama free life and be a positive influence in your own life and the those around you. And more importantly, we all need to learn to cope so that we can have fulfilling lives, pay rent/mortgage, hold down a job, have social support system.... well in summary we need to cope to survive.
There are many different coping mechanisms, including self invented ones. While some do physical exercise to cope with anger and anxiety, others dive into meditation practice or some to both. It is all a matter of choice.