If you have a family history of hypertension, does it mean you will get it too?

There's such a possibility. So, if you know that you might be inclined to it, try to learn more about the precautionary measures to take to minimize your chances to get it.

Not necessarily.  There is a lot of information online about how to avoid getting high blood pressure with diet.  

It means you are at greater risk of developing it so should avoid as many rust factors as possible, while ensuring your doctor monitors this regularly.

There is a very good chance of it.  It absolutely follows in families.

I was diagnosed in 2013. My aunts and uncles have it too.

yes especially if both your parents have it