Activities
Keeping the brain active is most important having someone to talk to can make the world of difference.
Explore a variety of hobbies
You may have hobbies which require you to leave your home and whilst you may well be able to drive yourself some times finding a close safe space to park can be stressful or coming out alone and returning to an empty house just puts some people off leaving the house at all. You could have a companion take you to your classes and if joining in alone is daunting she will be happy to join in with you coming home needn't be full of dread she will make sure you are home safely. There are lots of hobbies that can be done at home. Maybe you would like to take up a completely new hobby, learning something new keeps the mind active, and if you have someone there with you it will make it even more fun and enjoyable.