The older I get the more I become that way too. My home is where I am safest. I suffer from complex ptsd.
Many days I can't wait for work to be over or for the weekend to come so I don't have to go anywhere.
I fight it though because I know that living in total isolation is not a good thing.

My youngest son has been like that for several years and I have always encouraged him to keep going because the alternative is worse. He is currently away at school and is always trying to find a reason to come home and some days he is filled with panic and anxiety and we talk through it to keep him reasonable and more importantly, in school.

It isn't easy for either of us and I can see us becoming co-dependent if I allowed it. I stay very aware of the situation.

I hope you can stay strong to fight it also.