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I treat my mental health illness by myself, with keeping all of laws in japan . then do you treat your sickness by yourself ? can you calculate your medicine for your mental health care illness by yourself ? do doctors give many medicine to mental healthcare patients ? what is the advices from doctors then ?

No one should try to treat their own mental illness or any other major illness. only a doctor is qualified to do that. you should get to a psychiatrist or other professional immediately.