Is my dad invading my privacy?

So my dad works in IT. This means he can do stuff I didn’t even know was possible. He can check his laptop at anytime and see what apps I’ve been on and what time. I know this because he talked to me about how I’ve been on Netflix late at night. The thing is, he didn’t need to install anything on my phone. I had no idea he could see that stuff. He can’t see my messages or my searches though. If he were to check his laptop in the morning, he could see that I’ve been on Chrome at 11pm, because I am now. I feel a bit uncomfortable with him doing it but I’m too afraid to ask him to not do it. His reaction would be something like “Well that would be unfair on your brother” or “Why? what are you trying to hide?” My brother has the same supervision applied to him too, so it would be a bit unfair if I would have no supervision on my phone. Sorry, I don’t really know what to call it I feel like it’s a slight invasion of privacy. For context, I don’t have parental controls on my phone. I’m 12 and can use the internet unsupervised. I have Snapchat, Instagram (which I barely use) and WhatsApp. I’m allowed my phone and laptop in my room at night. I hope that information helps. I just feel like, it’s my phone, I can do what I want. If I go on Netflix late at night, then I face the consequences of being tired the next day. I don’t know if my laptop is registered either so I don’t use that. If your answer contains any legal advice, I’m from England. I don’t know if legal stuff is different in other countries but it’s not a chance I’m willing to take. Any answer is greatly appreciated. Sorry of this question was bad, this is my first time using this website. I would use Quora but it doesn’t let me type enough characters.