Do you know I'm not excited/involved in my mothers baby?
Are you for real? How have you felt about the news of the baby?
I don't know. I'm not really that excited about it.
It's not always an exciting time when your parents have another child. It can be frustrating and a whole mix of emotions and that is okay.
I think something is wrong with me. I was excited when my mum told me my and now I'm deflated.
Well, that's because the excitement and surprise are over and right now reality is kicking in, which is that you will have a sibling. So now you are the older sibling, which means you have some extra responsibilities. This is probably why you feel deflated, but I am not worried because you are going to be an excellent role model for the baby.