I never felt at home until adulthood. I think it was having some measure of control over where I was, that wherever I decided to lay my head was home. If you can be turned out of your place unexpectedly, I can see not feeling you are at home.

I had terrible insomnia as a child, I was always anxious and depressed. Note, I was not abused or neglected. But everything changed with adulthood; the cure for me was simply gaining agency.