I'm aware of the irony of reading what more people, this time strangers on the internet, are telling me to do. I doubt I'll see the answer in a web browser.
For the time being I'm simply trying to do something I've never done before every week. It doesn't have to be drastic, maybe something like trying out a new recipe or taking a photo of a different neighborhood or going for a moonlight run at 3am. Sort of a "throw lots of things at the wall and see what sticks" approach.