My kids are older,too........but I still was the one here to keep it together and as "normal" as possible for them;just like you. I did what had to be done and kept going one day at a time. I think that is probably part of what you are feeling/not feeling,too.
Sending you a big hug! Please keep reading and posting;it has helped me so much and I hope you find the same to be true for you,too.