I think I broke Minecraft?

So anyway I was playing my game when my computer ran out of battery and shut down. I turned back onto the computer and logged into Minecraft to see this:

I think I broke Minecraft

All of my items in my inventory were invisable, I could see the sun in the floor, I could see lava under ground flickering and the only things that were in color were mobs and my chest that I put some of my items in. I waited in hopes that the game would load in and fix the glitch by itself, but it didn't! So I took a bed out of my inventory and went to sleep in hopes that when I woke up everything would be normal, but all that did was turn the sky white!

I think I broke Minecraft - 1

What's going on? How do I fix this? What caused this horrible glitch?

Try starting a new world. Your save might be corrupted.

Re download minecraft. Looks like your texture packets are missing. Or some other file is missing.