Research shows that writing oneself a compassionate or love letter for seven days can lead to long-term improvements in happiness and subjective wellbeing. Practicing self-compassion and gratitude daily can become a habit through neuroplasticity, allowing individuals to improve their mental wellbeing and habits over time. Consistent practice of positive habits like self-compassion and gratitude can lead to mastery in these areas, just as consistent practice of negative habits can reinforce negative behaviors.