How do I convince my parents I’m responsible?

I’ve had my phone since I bought it 3 years ago (age 13) and my computer since my Nana gave it to me 6 years ago. I’ve never had a problem using either excessively, my parents have never restricted my internet.

Over the past few months, for absolutely no reason at all, they have started putting restrictions on my phone and computer. It started with them turning data off late at night. Reasonable. Then they started restricting internet making it difficult to do homework or talk to friends. And over this past week, they made it so I have to REQUEST ACCESS every time I want to use wifi on my computer.

I find it ridiculous because all I have done this past month or so is show more responsibility. I used to have a problem going to CVS and binging on food and I have stopped doing that completely, sometimes I’ll buy a couple junky snacks but never like the binges before. I’ve started driving. I have a job. Just this week I traveled to a foreign country without my parents. And, after a year of struggling and failing multiple classes, I pulled up my grades to make 5 a’s and 3 b’s, the best grades I have had in a long time. From the standpoint of my mental health, I’ve been happier than ever this past year. So I really don’t understand where they are coming from. I know “my house my rules” but why these rules out of nowhere? Why do they have a reason to be concerned now, even after I have time and time again proved my responsibility in so many different ways?

I would completely understand if I had a problem with electronics... but I’m just an average teenager, I don’t use my phone excessively, sometimes I have lazy days where I watch lots of youtube but who doesn’t? I’m lost. I feel like all my efforts to be more responsible are going unnoticed and instead I’m met with stricter internet guidelines out of nowhere.