What about volunteering? Usually no credentials or experience is required. You get out of the house, get to be around people, and you get the satisfaction of feeling like you are doing something useful, which is rewarding in itself.
It could be anything. You have all kinds of organizations wanting volunteer help: social outreach programs, churches, scouts, clubs, etc. See if anything local catches your interest.
Yes, unless it is encrypted, in which case you need a way to decode that. You can even boot an OS from a USB thumb drive to recover files from a hard drive.