How to make game remember set settings?

Let’s take that when I enter my game for the first time I have English language and volume - 100%. I set language to Polish and volume to 80%, then I close game and enter once again and I want game to “remember” those settings. ( Main Menu in Polish and volume is set to 80%)
My friend told me that I should save my settings to a file and then load it to the game when it starts, but I have no idea how to do it. Someone help :slight_smile: ?

I’m sorry if I made some mistakes but English is not my native language.

The PlayerPrefs class is designed for this sort of thing.