I had an uncle who went on bp meds at 16. It kept him from being drafted and he passed at age 82. Sometimes it’s just genetics. The concern with high blood pressure is what it does to your body over time. Take your meds - keeping it down will help prevent/limit damage and risk. Check your bp regularly to share with your doc. There are several different types of meds and it’s not unusual to need more than one type to keep it steady. 150 is high for your age, but not usually emergency level, especially if you’re asymptomatic, unless your doc has given you other guidelines.