Assume that the future can change based on your actions, so any historical information that you bring along with you from the intervening 25 years may quickly drift out of the new realities history.
Edit: also assume that you can be given a healthy 21-year-old body if you want or take your previous self’s place.
Further, identification will be provided for you if you were not born at that time.
We don’t really know what would happen to this reality. It might just flicker and vanish away. But if you had a new daughter, she might be awesome too and without the time travel, would have never existed.
That’s cool and all, but they love this daughter now.