After playing for hours I lost my internet connection for about 5 minutes, on the screen it showed a loading icon for the connection in Minecraft, after a while (3-5 minutes) the game crashed when I went back and joined my world the game super laggy and nothing appeared on the screen only beds/chests and some other stuff. Help me please I can’t live without this world

ps : chat/settings don’t open while playing and it crashes after 5 mins ( you only see particles, beacon long tube thing, beds and chests