MBA Grey screen and can't resolve for 5 days ((((

[stan051181]

Hi
It's only 4 weeks since I am using MBA 64Gb and "memory is full" message appeared, then computer was frozen and I forced shut down.
After this grey screen of death appeared and I can't do anything with this.
Already tried:
Command+R - when trying to open disc utility shows " Gathering disc data" for hours and nothing happens.
Re-install OS X option - same as above.
Selecting Recovery HD after pressing option key during start up - not booting.
Checked the Hard drive in single user mode - shows that it's OK.
Reset RAM
Now trying to secureErase 1 disk 0 using Terminal.Shows "Started erase on disk 0"
it's already more than 36 hours and not completed - Ithink it will not erase because it's a bootable drive?
Maybe I have to use another option from Terminal?

The biggest problem is that I am not ashore and have no possibility to bring my computer to service also my internet speed is very low.
I will appreciate any idea how to fix this problem as I have two weeks to go and will go crazy without computer ))))
Thanks in advance to everybody!!!