My Minecraft wont Load!

Okay so I was playing minecraft in my regular survival world and then left o get some breakfast. (I got out of the game but left my PC on). When i came back i clicked to load minecraft windows 10 edition and it showed the mojang logo but then never loaded farther and proceeded to crash. I restarted my PC and the issue followed. I tried hard shutting down my PC and even turning off WiFi, getting out of full screen everything. Im really stressed and worried for my worlds that i spent many hours on trying to perfect last night. I really need an answer and want t play. I payed for the game so I want to play it.