I can recommend building something for fun, just for yourself without anything of the business-y metrics.
When I had a demotivated phase I started to build my website for fun, and didn't give a damn about anything people would say of it. [1]
That ignited the motivation to build my own tools again and led to the motivation of finding something other people might need, too.
A lot of "older" people in the industry that I know also take part in game jams like ludum dare and come together on the weekends to build something fun that they like. Game jams are all about having fun with zero expectations, so you can basically build whatever you want that comes to mind on a specific topic.
I can recommend building something for fun, just for yourself without anything of the business-y metrics.
When I had a demotivated phase I started to build my website for fun, and didn't give a damn about anything people would say of it. [1]
That ignited the motivation to build my own tools again and led to the motivation of finding something other people might need, too.
A lot of "older" people in the industry that I know also take part in game jams like ludum dare and come together on the weekends to build something fun that they like. Game jams are all about having fun with zero expectations, so you can basically build whatever you want that comes to mind on a specific topic.
[1] https://cookie.engineer