Yike...no advice I'm not good with computers....but I feel your pain. When I owned my own business my computer crashed one day...all of the businesses records and finances were on there...and of course, I wasn't as dedicated to backing up as I should have been.
My computer was beyond repair so I bought a new one and a tech came in, pulled all the info off my old hard drive and placed in on the new one.
Whew!!!!
I'm better at backing up now
Anyway, good luck, hopefully if all is lost all is NOT really lost. I think a good tech could recover your idata.