Welcome to HCM
You are young and have positive family history of hypertension
.If these reading are by digital self measured BP,kindly check your BP with Physician or in hospital to confirm.
Your readings are in Pre-Hypertension range and you should make certain lifestyle modifications and keep track of your blood pressure if it comes in desirable range drug treatment can be postponed if not avoided completely.
You should reduce salt intake to
Your weight if overweight
reduce it gradually.(Depend on your Height)
Take fresh fruits and Green vegetables in diet.
If by chance smoking
and/or drinking is there stop.
Even these changes you have BP which is high ,you have to start medicines to keep BP at desirable level.
Take good care of yourself.
Best of Luck to you.