My parents are forcing me to marry
I'm 19 years-old and my parents introduced me to this guy named Erik. He's 34 years-old and he's a lawyer who is very wealthy. After a month, he won over my parents and my mother informed me that Erik wants to marry me. I told her no but she says she'll disown me if I don't do marry him, even my dad agrees with her; she also pointed out that I've never had a boyfriend before so there's no point on waiting for nothing. I agreed and my family has already made plans: buying me a wedding dress, going to churches and hotels for the reception, and Erik bought the rings.
I don't want to marry him at all. The date is August 27 and I don't know what to do. I won't turn suicidal or anything but every time I tell my parents that I don't want to do this they tell me I'm foolish not to marry this guy.
My parents will disown me if I don't do this but I can't do it.