It is good that all your tests are normal. It is good to keep BP close to 120/80 for the long term benefits.
Hypercontractile left ventricle is seen often in young people with mild elevation of BP. It does not mean anything adverse. If your physician prescribes you beta blockers to treat mild hypertension it may be desirable. Often people with Type A personality have more catecholamine secretions and this group of medicine which is very safe may help. In addition keep your cholesterol very low; regular exercise and low calorie diet helps.