My Minecraft will not load past the new red mojang screen

I had just done the new minecraft update earlier today and after that every time I would open minecraft it would go to the red mojang screen and after that my mouse would get the blue circle around my cursor and then it would just completely x out of the game. I have shut down my computer multiple times and nothing worked I cant uninstall minecraft then reinstall it because im afraid that would most likely delete my worlds and i have some vital worlds that I really dont want to be deleted so can you guys help me with this I play on a laptop windows 10 I have the bedrock edition my xbox account is DominicBiv thank you hope to here from you soon.