Hi. I need some serious help!!

I have SSD (on docking station) which I have been using for editing some video footage!
I was editing in Final Cut Pro X and suddenly FCPX crashed. I forced quit the software. However, I wasn't able to eject the disk.
I tried several different methods but it wasn't possible. So I turned off my Mac and restarted. My SSD didn't appear at all.
So I went into Disk Utility, but one part of the SSD was greyed out and the other was there. It was not possible to either mount the greyed out part, nor use first aid, I just got an error code. I have spent tons of money on different recovery apps, because none of them lets me extract the files. One of the apps can retrieve 60 GB. But the rest of the 1TB won't extract. (I'm using Disk Drill and iBoy recovery).
I also tried to use "LOST APFS partition", to find the data, but I have to enter the password (the SSD is encrypted - which complicated the whole thing). I just get a notification saying that it's the wrong password, which isn't true!! I've tried over 20 times, also with different password even though none of them are the actual password.

I've also tried to access the SSD through Mac OS recovery -> Terminal -> Iboy software, which they recommend, but the same problem occurs.

Any idea how I can access my SSD? Or decrypt the disk? Or any other recommendation?
All suggestions are very much appreciated.

(And yes. I did have back up of parts of it, but not the newest material. So only 2/3 of the disk ha a back up.

Hi Lionclaw.

If your data is important to you then you should really hand the drive to a pro recovery lab.

If I was doing this as a diy recovery then the first thing I would do is stop using a Mac. I would set up a Windows pc and start with a few basic and simple tests in Victoria. Check the smart for pending and reallocated sectors etc.

Then if the drive appears to be stable enough I would bit clone the drive (every sector) to a known good replacement. You have a choice when it comes to the cloning software but I would normally go for Hddsuperclone or Dmde.

Once you have a good clone copy of the drive you would be good to go using recovery software.

Diy is dangerous because the drive might be slowly failing in such a way it might just die on you and then the pro recovery costs would likely be higher.

Is the drive Apfs encrypted?