What exam do I need to know if I have high blood pressure?

I'm 23 years old and my pressure never drops from 10/13, my hand is a nurse and it takes my pressure pretty much every day, yesterday from 10/16. I'm a smoker, I drink and when I take the pressure off I get a little nervous! I've done 2 electrocardiograms in the last 3 years that have not charged anything! What exam gives the precise diagnosis if I have high blood pressure? Help me, I can not take it anymore!
Expert answer:

Your question is very strange, but it's interesting ... To know if you have high blood pressure, just measure the pressure if you are above 12/8 you have high blood pressure, go to a doctor and start taking the medicine he will prescribe, drinking, smoking and so on.