How do I save paths made by pen tool? Photoshop CS6
I have just started working on a project and after completing it, I saved the file as PSD. When I went back to check on it the next day,all the paths I have drawn using the pen tool is gone. I have two questions regarding this.
1) Is it possible to retrieve the path created?
2) How do i save paths made by the pen tool to prevent it from happening again?
Below is the project for reference, I am using CS6.


