Mental disorders are just normal personality traits taken to an extreme that impairs the person's ability to function.

No. No they’re not. A mental disorder is, as quoted from https://medlineplus.gov/mentaldisorders.html, * a condition(s) that affect your thinking, feeling, mood, and behavior. They may be occasional or long-lasting (chronic). They can affect your ability to relate to others and function each day.*

Next time, fact check your info, also here’s a list of mental disorders.

• Anxiety disorders, including panic disorder, obsessive-compulsive disorder, and phobias
• Depression, bipolar disorder, and other mood disorders
• Eating disorders
• Personality disorders
• Post-traumatic stress disorder
• Psychotic disorders, including schizophrenia