I completely agree with
@grovesy.
The best exercise for all of us is what we enjoy.
it could be walking or exercise dvds or gardening or dancing or cycling or house work (apparently, there are some people who enjoy it!) or a circuit session at the gym or, when they open, shopping (carrying your bags could be good weight training) or ...
If you enjoy your exercise dvds, go for it. If you like the fresh air, go walking. And, if you get through your dvds and bored with going over them again, you can do something different.
Whatever you do, it’s a good idea to keep an eye on your blood sugars if you can. Some exercise may cause them to go up and some may cause them to go down.
And, don’t forget to have fun.