Minecraft PE constant game crashing

Currently there is a significant problem which is causing my game to crash over and over again. I did not have this problem until 1.20, and my phone storage and memory is outstanding, so that is not causing it. When I play the game, it runs smoothly, but after a while everything will become slightly slower, then the game will suddenly crash. I reload into Minecraft and the world reverts back, like under a minute, as if the stuff I just did never happened. Crashing becomes even more frequent if I go exploring or go mining deep underground. I would have to stay close to my spawnpoint to prevent it from crashing. It also crashes a lot when I use spectator mode.