Welcome, Nancy!
You could look at all the different sections, here at our website, and find ones on all of your hobby crafts,
and the section on pets, too. I hope you find us interesting and interactive, enough to fill a part of your needs.
It's great that you are physically able to keep up with any of your crafts!
I would take time to learn as much as possible about each, if you've never had a cat or dog. They do have different care needs.
Katlupe had some good suggestions, above, along with the other posters.
A dog is good if you want it to get you outdoors and walking.
If you don't want or cannot be on their needed schedule, then a cat is the better match for your own situation. Either would be good company, if you like the one, and if the indivisdual's personality matches your needs, too.
In addition to us, you could also ask animal shelters about the particular types of behaviors, of a type of dog, and the specific individual dogs or cats behaviors.
Nice to meet you.