How to save settings in Tails OS?

I tried to save settings like language, Admin password, Background and more, But for some reason i can’t and i tried settings in the screenshot but nothing happened and i have to re-configure whole settings again and again and again, So please help me.

From what I understand, one of the main points of Tails is that no configuration is saved, therefore, evrry time you boot it, the OS is the same as all other tails users. Why would you want to change that? If you dislike that aspect, you should choose a different Linux distribution.