It would mostly depend on what Nobel Peace Prize you won. But on a general scale, here's an idea or outline on how your speech should be.
I. Introduction
(in here you talk about the prize itself, why you won it and give your thanks on receiving it)
II. The prize
(in here you talk about any fact of the prize)
A. Fact #1
B. Fact #2
III. what brought you to winning it / why you won it/ how you got there
A. personal story (events/ some memory/ etc)
B. role models (inspiration)
IV. thanks
A. feed off role models, parents, people whom inspired you (giving them the credits and whatnot)
V. Conclusion
(restate basic idea in introduction, restate thesis, summarize what you wrote)
Hope that helped!
