When do you get double eyelids at the earliest?

pu1. Maybe because of my high school graduation picture, I think I do it most often until summer vacation

2017-10-26

OK

pu2. High school senior winter vacation

2017-10-26

OK

pu3. These days, there are kids who play it when they're in 9th grade
If I do it too fast, my face will change, so I don't know if I'll be able to settle down well.

2017-10-26

OK