It's natural to get frustrated when you feel like you're in a mess and nothing you try seems to work. Try and absorb it slowly, one step at a time.
A few background points which may help:
- To open and edit Raw files, Photoshop uses a plugin called Adobe Camera Raw
- Every camera model has its own unique Raw file format so Adobe has to continually update Camera Raw to be able to open Raw files from new cameras. Thus, only newer versions of Camera Raw can read Raw files from newer cameras.
- Different versions of Camera Raw are compatible with different versions of Photoshop
Full list here: Camera Raw plug-in and Adobe application compatibility - Photoshop CS5 is only compatible with Camera Raw up to Camera Raw version 6.7. So you'll never be able to open Raw D5600 files in CS5 since the D5600 need version 9.8 onwards and you can only use up to version 6.7. But all is not lost. Adobe offers you the free DNG converter.
So you are left with a couple of options: one paid for, one free
- PAID OPTION: join the Adobe Cloud, install Photoshop CC, update Camera Raw and you'll be able to open D5600 Raw files in Photoshop CC and Bridge CC (but not CS5)
- FREE OPTION: download the separate Adobe DNG converter, batch convert all folders of your Raw files from the camera into DNG format. Then open the DNG files (not the Raw files) in CS5. An extra step for you but no extra cost.
So, in your case, forget about CS5. Convert to DNG first. Any version of the DNG converter from 9.8 to current will work.
So, if you stick with CS5, your workflow is:
- Transfer your Raw files from your camera to any folder on your computer
- Open the DNG converter (version 9.8 to current) and tell it which FOLDER your Raw files are stored in on your computer
- Convert the FOLDER full of Raw files to DNG format. You have to do this even for a single Raw file.
- Use Bridge CS5 or Photoshop CS5 to view and edit the converted DNG files (not the Raw files)