Answer: Major depressive
Explanation:
Major depressive disorder is the type of disorder that induces depression and sadness in a person's mind which can last for long period of time.These feelings tends to persist in mind and disturb the normal functioning which is also known as clinical depression.
Symptoms displayed by the person are sadness for extended period, less sleep, tiredness,worthlessness, harming yourself etc.
According to the question, Lowery is suffering from major depressives disorder(MDD). She is thinks herself as sinful individual ,want to dies and has no interest in activities of daily life.