The Serenity Prayer tells us that we need to “accept the things we cannot change” and to have “the courage to change the things we can.” First and foremost, we need to understand that we cannot change another person, even though we want to believe we can. Although we might be able to influence other people, the only person we can ever really change is ourselves – and we need to develop the courage to do that when our thoughts and our actions aren’t serving us well.