Thanks a lot! have 2 questions please
1. When is most recommended to cheage the phone ? 30%? 20%?
2. Should I to power off the iPhone in night Usuaelly?
Charge when ever you want to with today batteries. I would never let my battery go below 10% but my day usually leaves about 50% on my X when I drop it on the charging pad.
I never power my phone off except maybe once a month. The volume is set where it is not loud enough to wake me up but is loud enough to hear if not sleeping.
Apple put a lot of great technology in the iPhone so the users do not have to worry about these things.
Try to relax and enjoy your new phone.