I think it would be great if you aren't expecting to be perfect at whatever you chose to do. Part of my anxiety is "being good" at everything and I am far from it. But I will get upset with myself on the inside and then have these negative tapes start playing till I am no longer trying anymore.
I say go for it!
I love walking and have been stealing time any chance I get for a quick burst walk. It helps with my anxiety and clears my head.