Crashes too much

Mcpe keeps crashing, and it's annoying. It's lowering my opinion about Minecraft. P.S. = I LOVE MINECRAFT!!!! PLS Add a /size feature! It's currently only in servers, but make sure to make sure that in EVERY update, make it so the features won't make it crash, I've tried turning Down my render distance, turned off bobbing,turned off Beautiful sky, and turned off fancy graphics but nothing works!!!! Pls fix soon!