I cant erase or repair my disk its always says(Volume Erase Failed Volume erase failed with this error: MediaKit reports not enough space on device for requested operation all my system hard drives became those names 1) diskOs1
2) diskOs2 3)disk0s4 I am afraid I dont have a backup and I cant reinstall OS X and I am only 13 My father gonna kill me please help me fast as possible I am afraid my Mac will be ruined
I did bootcamp yesterday but then today I switched for Mac but for somereason its deleted my mac so I tried to reinstall it but then its did the problem and deleted my windows too! I am really afraid please help

2) diskOs2 3)disk0s4 I am afraid I dont have a backup and I cant reinstall OS X and I am only 13 My father gonna kill me please help me fast as possible I am afraid my Mac will be ruined