I've spent a bit of time homeless / have to fight against going back there intentionally whenever things are rough (It's my least favorite way to live, but is still on my favorites list)... But I come from a warm and loving home. My PTSD came later, as an adult. Homelessness is, soothing is the wrong word, but similar. Grounding. Gets rid of all the noise. The stresses of modern living aren't something I do easily. Or well. (paperwork, paperwork, paperwork, bills, and appearances, and being easy to find -aim not keen on defensible positions, I'd rather be a ghost-, room after room for sitting, sitting, sitting, and buying yet another waffle maker, and mealtimes, and memberships, mail... The list goes on and on...and on and on). Meanwhile the stresses of homelessness dovetail neatly into my skill set.
I've lived a lot of different ways over the years.. Houses, flats, boats, hotels, cars, rough. Fixed addresses or always on the move. With people and without. People, at least the people I'm mostly around, seem to have this fixed idea of what "home" is. Be it apartments or houses. I'm coming to believe that's never something I'm going to be entirely comfortable with. I'm currently trying to experiment with merging the best of both worlds. There are a couple different avenues I can take with it. Not quite ready to go boat-people... Staying land based for the time being. It may not look like most people's ideas of home, but most people aren't living there. I am. Or will be. Working on scrapping everyone else's notions, and "simply" figuring out what I want/need. That's been the hardest part. And I'm sure will take some tweaking. Shrug. What doesn't?
When I was homeless... I avoided help like the plague. There's tons of it out there, but even just a cursory exam showed it to be offering things I didn't want in my life. Worse, expecting me to be happy about things I don't want. No thanks! Someone else who desperately wants what I hate is more than welcome to it :)
Anyhow... My suggestion would be to scrap whatever world views define home in your mind, and to sort out what you actually want in your life, and how you want it to look. Might look normal, might not. But it would be yours.