There are techniques of Buddhism, such as meditation, that anyone can adopt.
Open your arms to change but don't let go of your values.
To reduce destructive emotions we need to strengthen constructive emotions. For example, to counter anger we cultivate love and compassion.
Anger is the ultimate destroyer of your own peace of mind
Only through kindness and love can peace of mind be achieved.
For change to happen in any community, the initiative must come from the individual.