Formatting a disk destroys the data. You didn't lose most of the pictures if you formatted it, you destroyed all of them.
Also, your SD card is dead, so there's that too. Extremely unlikely that any data can be recovered, especially since you tried to format it. I'd toss it in the garbage and buy a new one.
I did try to format it but it wouldn't do it. I figured I would have to throw it away since it won't let me do anything to it.