“The arc of the moral universe is long, but it bends toward justice.” -Dr. Martin Luther King, Jr.

Perhaps the project you’re trying to manifest, the change you’re trying to make, doesn’t have an endpoint in sight. You’re worried about the long slog ahead. “Is this worth it?”
Just begin. Trust that if you’re intentions are pure, the endpoint will eventually reveal itself. And even if you’re not around to see it, others will be inspired by your actions. They’ll step up and carry your work forward.