spawning in the middle of the ocean with no land after death even if you slept

OK so... i was playing peacefully on pocket edition i had a beautiful house two animal farms one food farm about five dogs a mine under my house near the back of my house the is a mine-shaft and a skeleton spawner and i had 23 diamonds plus a diamond pic and shovel. then i accidentally die from falling from a really high spot and minecraft freaked out then showed me bedrock in my face for a couple of seconds then it spawned me at the bottom of the ocean so i swim up and there is no land at all!!! its just water and yes i did sleep in a bed like a thousand times i'm really sad because i worked really hard on that world and i hate minecraft for that!! you owe me mojang i spent hours months on that world!!!

in that picture that literally what i see every where!!!