Mincraft game crashed

I am so upset, i have put over 120 hours on survival xbox 1. I have cried over this. I was playing and i noticed all mobs were gone and then there was no fish in the ocean.i decided to restart my game, when i did it wouldnt load. Finally it said it had been corrupted and i was playin on the same xbox i started the game on. I once again restarted my game and my world was gone. Please tell me you guys can help me recover my game