Yes connect a laptop to save what you can, some app data files you may find difficult and so you will loose some app settings.
Once you are happy that you have saved your personal media files and a copy of your contacts etc. you can then reformat the SD card as portable _ that’s when you will see what you lost that you couldn’t copy.
Once the SD card is formatted as external you can copy back your personal media, and set the camera, for example to store on the SD card.
Here’s a link to a guide that may help clarify somewhat