Freeze on Pre-Loading Screen

When I open up Minecraft: Bedrock Edition it simply freezes in the white screen before the loading screen that says 'Minecraft' on top of it. I try opening and closing the game, restarting my computer, and I even tried reinstalling MC:BE, but it erased all my worlds and made my copy of a world inaccessible. Sometimes it is kind and it lets me play (sometimes I have to wait a long time for it to unfreeze) but after a few open and closing it will freeze again, sometimes even for a whole day.

This has been happening for various days, and in a very inconsistent manner as I never know when it will malfunction. This has been giving strong frustrations, and I'm there have been some people with similar issues but I have seen no resolution to this ordeal.