Forgotten iOS Restrictions Password/Passcode

My dad put restrictions on my phone. He put it for many things that he didn't even know about. For example, downloading and deleting apps and Safari. So now that I want to do different things on my phone, I can't because my dad forgot the password.

Is there a way that I could take off the restrictions without deleting all of my things? If that isn't possible, then how can I restore my phone so the restrictions could come off? I heard that you can use find my iPhone someway so I could take off the restrictions but I'm not sure and I don't want to do the wrong thing.

There's a tool that can recover the restrictions passcode from a device backup, called Pinfinder. Follow the macOS instructions and download the tool which is a command line binary and it will recover your pin.