thinning temples

Hi guys, i am 21 YO, and. in the past months I was a silent lurker, readibg posts etc etx. As a guy who lived in a deludelu that balding wont happen to me, life decided to kick me in the balls Now, I will post pictures. I would like you guys to tell me what Norwood scale I am. I think i inherited...

Im 19 yrs old and i want to know if my hair is thinning. First pic was 2016. 2nd is today with close up. 3rd was 3 months ago, about the same with 4th. Do i just have a big forehead? The hair on the side of my head was always thin with few like that for as long as i can remember(even 3 years...