First of all, I am a bit shocked to read about your health condition. I hope you'll get a quick and good recovery.
When it comes to games of mine that might suit the stuff you just named:
- https://phantasar-productions.itch.io/star-story Star Story is a turn based RPG in scifi theme. I also made a Star Story II https://phantasar-productions.itch.io/star-story-ii already
- I also have two fantasy themed RPG games https://phantasar-productions.itch.io/the-fairy-tale-revamped The Fairy Tale Revamped and https://phantasar-productions.itch.io/dyrt-net The Secrets Of Dyrt
- Cynthia Johnson https://phantasar-productions.itch.io/cynthia-johnson is an adventure themed puzzle game.
When it comes to a game to train you in typing then perhaps "Who Is The Virus" https://phantasar-productions.itch.io/who-is-the-virus can be a good choice. It's a CLI based games, so all actions revolve around typing commands. That two is a nice puzzle game.