Had 1800, 1000 then 800 six months ago. Was a 5 with no crown balding, still had a hirline, just thin and whispy on the top. No receeding temples.
I had an allegeric reaction to some powerful medicine at 19, Hair thinned considerably till 30 when I got HT. I know the feeling of thinning hair in early twenties. I am a good looking guy but met less girls as it really thinned. It wasn't fair but it's over with. At least I took care of this early. I will have hair when most of my friends go bald in their 40's !!!