Treatment depends on the grade..You are suffering from hormonal changes causing Androgenetic alopecia causing hair fall. It's completely stoppable even regrowth of hair is possible with certain medications without any side effects. Treatment depends on the grade of hair loss. So, it's a must for diagnosing which grade, you are in for an effective treatment. Please  send photos of your head, by direct online consultation for accurate diagnosis and proper treatment.

As I can see that you are concerned about hair fall and thinning. But don't worry losts of good options including combination treatment and natural therapy like PRP is available which has shown promising results. So please don't self medicate yourself and start the treatment early to revive the lost follicles. Remeber early treatment is the key to revive and restore your hair follicles.