Growth Patterns?

I am an 18 year old male( turning 19 in 2 months) and I have grown 3/4 of an inch in the past year. However my growth as always kind of been steady, I never really had a huge growth spurt( peak was 2 inches in one year 14-15) At 5'8 3/8 at just 15 my growth pattern told me that I was going to be 5'11, well it never happened( Dad is 5'11 mom 5-4-5'5) Both of my grandpas were 6 feet). when I turned 17 I had grown only to 5 foot 9. I Thought I was done growing( even though I looked like a 14 year old without any hair on my face) Well when I turned 18 during last summer, all of a sudden my voice started cracking, started growing light facial hair, pimples all over the place and grew 3/4 of an inch to my current height of 5'9 3/4. I still have very oily skin and my voice still breaks soemtimes and my facial hair grows very slow. Do you think I am going to be one of those people who doesn't stop growing until 21 or I have stopped already? Has anyone hear experienced this?

Growth Patterns?
It sounds like you are hitting puberty late in the game. The voice change and acne is very common, as well as the facial hair. There is a good chance you are going to keep growing into your twenties. It's hard to tell when you are going to stop growing. In adults it's usually classified as two or three years of continuous non-growth. You also may see a bit of a jump in height as most males do when they reach puberty.