RIP

My great grandmother passed away about half an hour ago.

I feel bad, because I'm not like mourning and the news isn't making me go like "oh my god!". I really wasn't that close to her and now I feel bad because I should be mourning or something shouldn't I? I feel like if I'm happy tonight or something that I'm doing someting wrong. I'm not though right?

I feel bad for my mom and my grandmother and grandfather and uncle though. I feel like I'm not giving enough emotion to them. She's in a better place though right? So we shouldn't be completely sad right? My mom's trying to act the same so that us kids won't worry. I feel bad about that too. She shouldn't have to act this way for us, but my younger siblings just don't understand. I don't know anymore.

Advice?