yes, of course..it should be personalized to fit your personality and character, as you are your own person, and there is no one else exactly like you. In fact, making up your own high school would probably be better in a fiction story than including your own, as it would make it more creative and imaginative. Of course, you can base it off your own high school, but it would be fine, perhaps even better, if you made up your own.
Hope I helped, and good luck with your story! =)