Lets get things straight: I'm a bit of a noob.
My Ubuntu System was not working well, so I went on the live CD and checked the system, everything went smoothly. So rebooted it without the Live CD and once again it would not work. So i repeated said process, but the system check was taking a long time, so i cancelled it midway through, despite the warning that it could corrupt the drive (I know, I'm stupid). So now it gets to the Ubuntu purple screen, with 5 dots that normally light on and off as it loads, and it just freezes there.
What can I do to retrieve the system with my data? I have got everything backed up by Ubuntu One, and saved to a USB now it is being discontinued, but have one VERY important document that for some reason Ubuntu One wasnt synced to save.
Thanks in advance