How to control the hair loss for men?

I know mutually men and women shed hair every day, and some occurrence of hair loss is from stress. For the past 4 years I have noticed that my hair has started to thin on the top and break very without difficulty even when I brush my hair. I’ve tried numerous products from pills to shampoos and oils with no sign of improvement or signs of growth. I really worried any advice and recommendation will be highly appreciated. Please help. And please don’t give any rude comments.