Expecting twins

Hi I am an expectant father. We're at 18 weeks. I'm 47 and these will be my first children. We had a scan a bit late and discovered two but had to have a follow up scan to check fraternal or identical. So found out today mono-di which isn't the easiest scenario mid covid. I'm hoping these feelings pass but honestly I'm just a bit freaked out. I was hoping for fraternal when I found out we were having twins and now I'm just not sure what to think. Which makes me feel guilty as the most important thing is mother and babies health, which so far is all good.