Whether you have a mental health diagnosis or not, life is difficult and stressful. Triggers, that can activate or increase your mental illness symptoms, are lurking everywhere. They can be family-related, work-related or health-related. That's why I'm a big proponent of engaging in behaviors that are preventive and proactive rather than reactive.
Mental Health - Bipolar Griot
Once a person receives a mental health diagnosis, the mental health recovery process can be long and difficult. Often, when people see a "healthy-looking" person that has a mental health diagnosis, they aren't aware of the actual timeline of the person's recovery. I know, for many individuals such as myself, it takes years to become a fully functional and a thriving individual again.