World is glitching...

When I enter the world from where I last logged out, the screen it mostly blue and flashes black with short glimpses of the world, I always have to teleport to certain coordinates, 100, 103, -4, by my tree house... Anything in front of me looks like the edge of the world, (though it's not, there's my village) and when I try to walk past it, I get the same glitch as when I entered. In the first photo, just beyond the tree house, should be a desert and wood village with stables I built, but glitches out, never crashes, and I can't go any further! 

 

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