Do you have a family? Can you stay with this company, but work remotely in a different place in your country or another one? Either a satellite office or an AirBNB for a month next to a forest, mountain or ocean?

I say that because a change of scenery will jumpstart hope and creativity.

I understand the sentiment though. It might also be worth looking for a new job. I find personally that job positions rot like fruit, and I hate staying somewhere more than 2 or 3 years. I can't understand people who stay in the same role for 5 years or a decade, and find that satisfying.

Try a change is my prognosis. You will get better insight into your feelings.