If you think you won, you did. On the other hand, if you think you were cheated, you did get cheated. Before beginning negotiations you should ask yourself two questions: "What is my best-case scenario? What is the least I'm willing to settle for?" The area in between is called your settlement range. If you can reach an agreement within your settlement range, it's a win!
Question 8
When the deal was finally struck, you didn't get everything what you wanted, but neither did the other side. Did you win?