I suppose it depends on the situation. Am I waking up as a 6 year old in 2022? Idk what I would do. Do I have to re-attend school? What would my mom think? Very weird scenario, I guess I’d just try and enjoy being a kid and having a body that doesn’t hate me lol. If I woke up as a 6 year old, back in time like when I was 6, I would try and make as many positive changes in the timeline as I could.
Regardless, I would brush my teeth religiously, to avoid the awful issues I’m having dental wise now.