Get on finasteride asap. You should also be using a ketoconazole shampoo, they aren't particularily expensive and it's scientifically proven to regrow hair. There's no reason not to, you have to buy a shampoo anyways, right?
I started finasteride at 20 I'm 22 now, and I have experienced no sides whatsoever apart from slight ball ache the first 5 days or so. Definitely worth trying.
In my opinion you should try everything to avoid being a short bald man in your early twenties.
On a different note, is there any scientific research showing that creatine speeds up your hairloss? I recently started taking it, but if it speeds up hairloss I'll have to stop. Vaguely recall
@David_MPN used creatine in the past?
@shookwun you probably know more about creatine and hairloss.
Would really like if someone could shed some light on this as I don't want to use it if it accelerates hairloss.