If I woke up as the 7- or 8-year old me, I would make every minute of that last great and happy year of my life count.
I would also try to warn a family about letting their daughter out of the house on the night she would otherwise be raped and murdered. Then I would wait the 2 years (to 1967) and do whatever I had to so that the rape/murder never happened, even if it meant going to prison myself.
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The mere fact that science may not yet adequately explain an object, event, or experience does not mean the immediate explanation should automatically default to a conspiratorial, extraterrestrial, paranormal, or supernatural cause.