Things you should do to treat AA:
-Antiandrogens, first and foremost: Finasteride / Dutasteride. Maybe if you are afraid of sides, try topicals: Finastopic, RU, etc.
-Growth stimulants: Minoxidil, Stemoxydine. Both work differently and have a pretty good rate of success.
-Hair vitamins, good food, healthy lifestyle.
-Dermarolling once every 5-7 days (1-1.5 mm), and scalp massages.
-Good shampoo, from the pharmacy. Maybe do Ketoconazol 1-2 times per week.
If you are NW4, do a combination of these and come back in 8 months.