I didn't have any bare spots, but I had some recession and thinning up top like Glenn Danzig's. It was a gradual loss that happened between the ages of 17 and 43. It was long most of that time, and what I noticed was that the ponytail just kept getting thinner.
Now I'm one year finasteride, almost one year estrogen gel, and six months dutasteride and now there's a lot of shorties that need to catch up to the rest. I'd say most of what I lost has come back. The hairline is actually advancing now. I'd still like to see the widow's peak fill in a bit more, but I don't think I'll be needing any transplanted now. I see plenty of cisgirls my age with less up top than I do now and have long since stopped worrying about it.
I've also heard that getting the berries plucked will "probably" help even more, as your main source of DHT is gone. The fact you're very young works highly in your favor.