What’s the one truth about life (besides death) no one wants to admit?

We spend so much time chasing dreams, seeking happiness, and convincing ourselves that life will get better once we reach a certain milestone. But deep down, there are some hard truths we all avoid. Maybe it's that happiness isn’t permanent, that effort doesn’t always lead to success, or that some people will never truly change.

It’s uncomfortable, but facing these truths might be the only way to live with real freedom. So, what’s the one truth about life you think no one wants to admit?

Edit: Thank you everyone for the overwhelming responses, lot to see and learn from each other about life!