Hopefully when the dust settles, the OP will find his tracks somewhere on his hard disk. I would probably be equally emotional and saying all kinds of things in that situation.
In case it is helpful:
- Technicians who work on DAW problems tell me Cakewalk is as stable as any. I suppose that doesn't help if you are the one who lost work, but it is good to know. (I hear good things about Studio v2, but it is too new to evaluate stability compared to others.)
- While working on a file, I alternate saves between my internal D drive and an external drive. Periodically, I change the version number so I always have an internal and external copy of the current version and past versions.
- The worst case scenario is that something is corrupted, you don't realize it, and you save the file in both places: but if you have previous versions at least you are not starting from zero.
God luck and sorry for your pain.