Do I really have to be excited about my upcoming wedding?
That is so sad. What exactly is it about your wedding that makes you unhappy?
I'm afraid of my future life with him.
Marriages should be between people who love each other and want to build a future together. If you are not looking forward to spending your life with your fiance, then you should not get married as it would be an irresponsible thing to do. It's normal to have second doubts prior to your wedding but if you actively fear how your life is going to turn out after marriage, then it would be best to break off your relationship so you can find someone more compatible.
I hate you for saying this to me. What I want is to piss off my parents by getting married.
That doesn't sound good. It is not fair to your partner to marry him when you don't love him. You need to step back and rethink this whole thing before you make a big mistake that will negatively affect a lot of people from two families.