Crashes randomly chat is laggy logs me out when I open Minecraft

Every time I open Minecraft it logs me out of my Microsoft account and I need to log back in. If i manage to do that without crashes I need to hope it doesn't crash. It especially crashes if i'm chatting or on a server from the server list. Minecraft has been unbearable to play and it's really annoying for my Nintendo switch to be randomly crashing.Its also super laggy.