Is it possible to run out of thoughts? Or are they in infinite supply?
I think you could only run out of thoughts or ideas, if you stopped having new experiences. Every idea is a recombination of things you’ve already seen and heard, or some conclusion reached based on those experiences.
So, if you find yourself running out of ideas, read something new. Watch something new. Go out and do something new. Go someplace new. Then stir those new ingredients up into the soup of ideas in your head and see what floats up.
Don’t let your ideas be strangled to death by the monotony of work and daily life.
Keep experiencing new things, even if they are only in imagination!