So when I go in to launch Minecraft, the Mojang logo appears and then it takes me to the pre-game loading screen of which it only loads up to 46%. I have restarted my xbox twice now and it has still been stuck on this screen in excess of an hour now. Not sure what to do at this point. Any help would be greatly appreciated. I have provided an attachment showing the loading screen as well.

I don't want to uninstall the game as I am not sure if I will lose all my worlds or not.