I did it when I was kid, oh hell about 19 years ago now. It wasnt scary, I just felt numb. My psych didnt take me all that seriously. She tried to convince me I was a Lesbian, so be careful. You KNOW your own soul, dont get manipulated.
Just keep in mind the whole time that Head shrinkers make your brain smaller. Yeah you need them to proceed in making yourself comfortable because society says so, however dont take them seriously. If you cant get what you want out of the first one start over. If you cant make up your mind what you really want, then and only then should you listen to them. Even under those circumstances however, try to take what anyone says about you with a grain of salt. Your path to the ultimate goal of self can be traveled by you alone.