How to control hairloss??pleez help with some effective suggestions.?

looking into the mirror while combing nearly gives me a heartache as what i can see there is while bald skin with so less hair to cover it nomater what style i make.i am 30 year female.i tried many things from biotin tablets to dercos by vichy to aloevera but nothing is really stopping my hairloss and am getting depressed.any suggestion will be deeply appreciated.thanks.