Be careful not to spend your life proving people wrong or else you may wake up one day realizing that you have lived your life controlled and steered by others, not figuring out what makes you happy and that you want to take.
Same with revenge. Life is best spent raising yourself up and others, not proving others wrong just for the sake of it. Always look at what you want and put it above any temptation and feelings that others have installed in you that control or steer.
Take what I say with a grain of salt, because that's all it is compared to the ocean of complexity when it comes to actions and real life.