A psychiatrist who once treated me said that using one's hands (& fingers) requires a large amount of the brain's capacity. So she said, if I was becoming depressed or anxious, if I could find something to do that involved the use of my fingers & hands it would help to prevent the spread of the depression & / or anxiety to larger-&-larger areas of the brain. So perhaps building model airplanes or building things with Legos might have that sort of beneficial effect on you? I don't know. But it may be worth a try!