WP Daily Prompt: What’s the oldest thing you own that you still use daily?

AI Artwork by Cursejourney
It whispers to me,
it mocks me,
it plays tricks on me and lets me down at the worst of times
but I can’t cast it out
no matter how many times I try
the oldest thing I own
and I use it every day
is my brain,
won’t someone make it go away?