I appreciate that. My brother has mentioned to me that he thinks I'll "grow out" of this religion sometime. He thinks I'll eventually change my mind about it, so he keeps asking me to do things like this.
maybe when you explain why you wouldn't go to a christening, you could explain the meaning of baptism to you, and how you've dedicated your LIFE to serving Jehovah God. This doesn't mean that you can waver in faith, because baptism is a serious decision. You made the decision to become baptised as one of Jehovah's Witnesses because you saw truth in what you were taught, and took it seriously.