when is a house rule too much?

Im 17 yrs old, turning 18 on february and my phone is confiscated every 10 pm so that my parents will be sure that Ill sleep early. I feel like this setup is fucked up and god damn. Im not a 5 yrs old. I live in the philippines btw so in our culture as long as you live in your parents house you have no voice and you live under their rule wheter its fucking unfair or whatever. Is this confiscating thing too much or not? I know some here are mothers so i feel like this is the perfect place to ask.