I think you are about right with the age.
The various Disk Utility screens show that there is almost nothing on the main partition, and that one has even lost its name - showing up underneath the "HDD HTS..." line as OS X Base System. That is the name of the boot system used by the recovery system. You have nothing else left on the drive.
I suspect that when your Mac froze/locked up, that was the result of your hard drive failing.
Everything else is gone, other than what you might have backed up on an external drive.
Maybe you can post the serial number here for your MBPro, which will be on the bottom cover in pretty small characters. There will be about 12 or 13 characters in the serial number. (The serial number sometimes will be difficult to read because of wear on the bottom cover) I can use that to discover exactly the model and year that you have.