I remember how I felt quite clearly. It felt a lot like I was doing it at gun point, and jehovah was the one with his finger on the trigger. Of course my father's constant reminders that I needed to do it added some weight to it, and he's the one that planted the seed of the idea that god was withholding happiness from me because I wasn't baptized.
The man that gave the talk prior to the baptism forgot to say "Amen" after the prayer, and since no one knew he was done until he just carried on talking normally (though I can't describe it, I suspect everyone here can relate to being able to tell by the tone of a man's voice that he's praying) so no one getting baptized said it either. I imagined that meant that it wasn't official, which quite suited me.