I'll second (or third of fourth) the advice that has been given.
Your BP was high enough that you do want to control it and right away. Medication is the way to do that.
Next step is to exercise, eat healthy, and reduce your sodium intake.
Your doctor will be able to give you the details on what you need to do, and you really should listen to him or her.
I recommend getting a copy of this book too:
http://www.amazon.com/YOU-Owners-Insiders-Healthier-Younger/dp/0060765313
They give good advice and explain things well. They have a number of other books and a web site that are worthwhile too.
Don't buy one of those electronic blood pressure monitors that goes on your wrist. They just don't work well.
The electronic ones that have a cuff that wraps around your upper arm can be better, but you'll want to take it in to the doctor's office so they can check its accuracy.
You can also get a manual one (a sphygmomanometer) and a stethoscope. You usually get better accuracy, and they can be less expensive.
Finally, I'm not a doctor, so take what I say with a grain of salt. Check with your doctor for the real scoop.