I'm an only child, and my mom hates kids, so I had no choice but to play by myself and be as creative as possible to entertain myself. I had no friends 3rd-7th grade that I spent time with except for a few months in 6th & 7th when I had different "best friends" and by then they weren't playing with toys. My Barbies always had whole scenes and scenarios, I would write out in depth names/background info/relevant information to the story, dress them for their roles, but then it just sort of ended there?

I wrote a LOT of stories, too, which was where my daydreaming manifested I suppose. Creative writing was, and sometimes is still, my escape from my home life. I still talk to stuffed animals/cat toys like they're living creatures with personalities and whatnot, and I DON'T KNOW WHY I DO IT EITHER, but my family makes fun of me for it sometimes. When I wasn't playing with dolls or writing, I was making my dog play board games with me, or reading books. So idk if any of that helps, or what your sibling situation was, but I was a very lonely little girl with no playmates, or even neighbor kids, so I just had to make do with what I had!