The period of your life when you are no longer young but are not yet old.
middle age
15
Make something happen
trigger
15
To end or finish sth gradually.
wind down
15
The condition of not having adequate duration and/or quality of sleep to support decent alertness, performance, and health.
sleep deprivation
15
To not make as much progress as someone else.
fall behind
15
You and your friends (and families, if possible) promise that every evening at 7pm or a time you've all agreed, everyone will switch off their devices and do something else.