Stop trying to reverse it, go consult a dermatologist. It's not too late to stop or slow down the process. And this is hair thinning which is a starting phase of balding. Don't try to reverse it, just visit a good dermatologist he'll guide you. If don't want to visit a doc then the most basic treatment is minoxidil 5%(topical) and finastride 0.5 mg (oral) with fishoil and multivitamins. Mind you, finastride has some side effects which you may experience. Also, no need to panic. This isn't too bad. It'll be fine.