17.5 years old, not sure if balding or not

I've always had a tall very large forehead, and I don't think I'm genetically predisposed to balding. Both my grandfathers had full heads of hair and mature hairlines, and my dad is a NW2-2.5 at 52 and his crown started thinning at 40. He also seems to have matured pretty early. My hairline used to be round, which is weird, but I want to know if it's likely to get any worse.

My derm said she didn't think I was balding and my parents think I'm going crazy. I'm also the only one in my family with curly hair.

Anyways, here are the pics

Dry:


Wet:


So what does it look like? Balding? Maturing? Nothing wrong at all?