I like you bought all kinds of shampoos, lotions, potions, and drugs. In my case non of them overcame the genetic predisposition for MPB. I wasted time, money, and hope. I wish that back when I was your age, that I took control and shaved it off and got on with life. Especially now that I know how great being sly is. The way I look at it - I spent 30 years agonizing over my hair loss when I could have spent those 30 years focused on so many more important things in life.
The best thing to do is to see a dermatologist. You could, like me, spend years putting hope into potions that in the end - are no more effective than using a regular shampoo.