Lost in My Own Mind

I recently started college and I've been feeling really out of place, like everyone else has this whole adult thing figured out. Lately, though, something weird has come up inside my head, this fantasy that's not quite like anything I've ever experienced before. It involves an older woman in a... strict, mentoring kind of role. She's not a real person, just someone from my imagination who helps me feel grounded when everything else feels so chaotic and uncertain. I try to keep this hidden because it seems so odd, but the more I think about it, the more normal it feels too. It’s like a little corner of myself that found a way to cope with all this stress and anxiety. But now I'm starting to wonder, is there something wrong with me? Am I just being silly for having these thoughts? Does anyone else out there feel this way? Is it okay if I explore this more, or should I try to push it away?