Could you please give me some information about mental hygiene or introduce sites which are in persian?

Two resources: I found one -- the iranian mental health research network: http://www.Mhrn.Net/ unfortunately i cannot read the language, but perhaps it's a start that could lead you to additional helpful information at least. I also found a document about mental disorders in persian: http://www.Heretohelp.Bc.Ca/sites/default/files/farsi_primer.Pdf.