I'm I still growing?!

I'm I still growing?

I am 18 turning 19 in 1 month and I have grown .65 of an inch since last year when I turned 18. Most people that I know ( My uncle included) sayed that if you grow past the age of 18 you usually stop at 21. I am also a late bloomer, my voice just started cracking 9 months ago and light facial hair started coming in. My father is 5'11.5 and my mom is 5'4( both of my grandfathers were 6 feet, and I never had a big growth spurt in highschool. I am 5"9.7. But my maternal grandmother is 5'2( with a 6'1-2 father and a 4'11 mother). Maybe I took after my grandmother?

If you are lucky you may perhaps grow a bit more.

You could keep growing until the age of 20 or even 21 but it is uncommon and rare.