Thanks for your question on Healthcare Magic. 
I can understand your concern. 
In my opinion, you are having 
high blood pressure reading mostly due to stress, 
anxiety and panic disorder. 
At your age of 21 years, possibility of 
hypertension is less. 
So if we control your stress and anxiety, your blood pressure fluctuations will also control. 
So better to 
consult psychiatrist and get done 
counselling sessions. 
Try to identify stressor in your life and Start working on its solution. 
You may need additional anxiolytic drugs too. 
Don't worry, you will be alright. 
Avoid stress and tension, be relax and calm. 
Hope I have solved your query. I will be happy to help you further. Wish you good health. Thanks.