Language in Minecraft can't be changed?

So I've been running Minecraft for PC for some time now and wanted to change my language from Austrian (do not ask) to English, but every time I do it crashes and the language does not change. I also tried to wait but no chance.

I know that as well. When I try to change the language, it usually takes quite a while. Most of the time the game hangs too. It may be that it's up to your pc that he just does not have enough power. Otherwise, just help wait, what you have apparently tried unsuccessfully. You could in principle replace the Austrian language file with English, which could be a bit more complicated.