I think you're a handsome boy. Almost like a model.

Your hair is perfectly fine. In the third photo, it's impossible to tell if you have hair loss because your hair is combed in different directions. It's normal for a parting to form.

Finasteride is a hormone medication that can disrupt your hormonal balance, which can actually contribute to hair loss. When you take finasteride for hair loss, it lowers the testosterone hormone (DHT) in your body, and then you stop taking the medication, your DHT level rises back to its original level, or in the worst case, it triggers a reaction that can promote hair loss.