I understand that you have pressed "everything" but you sound like you are panicking. Please slow down and try this.
Power down the machine - press and hold the power switch for 6 seconds or more until it powers down -- briefly poking the button does not do it.
Restart the machine with the original OS DVD in the optical drive, and hold the "C" key down, no other, and continue holding the "C" key until the machine boots up all the way - you 'should' see the OSX installer come up on screen
It may ask for the preferred language. Respond appropriately. Do not go further into the installer.
You should see a menu at the very top of the screen, look for a menu that says Installer, click and hold, it should drop down a short list, one of which is Disk Utility, choose that.
Once Disk Utility is open, you should see the name of your hard drive in the list on the left side of its window, and below that, the name of the volume (what your hard drive is "named" when it is on your desktop. Select that volume icon by clicking once on it, then choose First Aid from the tabs at the top of the Disk Utility window, then choose Repair Disk.
Report to us what happens.
. It boots up but in the process of loading the OS it tells me i need to restart
