My Laptop personal data vanished during format.

I am using Windows 7 operating system for my laptop. Time to time my laptop used to stop working with that. Last time when I formatted my system, I lost my all personal data and my work data too. And when I asked for a solution I got to know that there are many recovery software available.
Then I tried many software, but of no use. I am totally unable to recover my drive's data and I lost almost everything. When I tried the recovery software, it showed some of my files and more than thousands of files which were related to my Internet history. I am afraid that I will never get my data back.
