Tuning your own piano?

Has anyone ever tried tuning the piano in their school or classroom themself? It is a fools errand? Please share your thoughts. Thanks for your time.

EDIT: thank you to everyone who shared their experience and knowledge with me! I have changed the brake pads and rotors on my car as well as my wife’s car, and I agree that is an apt analogy.

I’m going to try to hold out for funding to hire a proper tuner, and use a keyboard with an amplifier until or if I can’t get a professional.

Thanks again everyone!🙏🏻🙏🏻🙏🏻