Problem with mental health, at least in some regions, is that there is a lot of misdiagnosis.
There is a lot of misinterpretation of anxiety & panic disorder with mixed dysthymia that is being called "bipolar" disorder. Then they get on antipsychotics that inevitably turns the dysthymia into depression or major depression.
When someone is bipolar, they go through manic, sometimes almost psychotic fits, which requires different medication as opposed to just simply treating the above disorders for what they are.
Obviously the best way to prevent problems is to start by talking to your regular medical doctor, and they should redirect to a psychologist/psychiatrist as appropriate.
Last problem is the entire world thinking "there's a pill for it". This desire to be medicated instead of counseled leads to major problems in some.