No technique works if it isn’t used.
If that sounds simplistic, look at some specifics: Telling friends about your diet won’t make you thin. Buying a diet cookbook won’t either. Even reading the recipes doesn’t help. Knowing about Alcoholics Anonymous, looking up the phone number, or even jotting it down won’t make you sober. Buying weights doesn’t get you muscles. Signing a piece of paper doesn’t cause a cease-fire, even if you make lots of copies and tell every anchorperson on Earth. Endlessly studying designs for spacecraft won’t put anything in orbit.