My minecraft world would crash when im exploring or minning anything. It would happen verry quickly or about 10 minutes.

I would make a world and i would explore, mine and kill stuff and when i do that it would crash, It would get annoying when im trying to play and when i want to play and nothing is wrong with my device its minecraft itself, i try to play as much as i could before it crashes. Its a big problem please fix it soon, i would greatly appreciate it.