Parents are having a great positive influence on us. And this influence remains with us throughout our entire life. The prophet Mohamed said that the greatest sin after worshiping other god but Allah is disobeying the parents. The Quran says that the one who want to please his god he have to please his parents. Satisfying your parent isn`t some thing impossible, you can have their satisfaction by the actions or the words. Try to avoid arguing with them even when your desires conflict with theirs. To succeed in your life is one other and important way to make them happy and to tell them to be proud of raising a good person like you.
And remember as long as you please them, you succeeded in gaining the god satisfaction and the success in your life.