FYI, subliminal messages, as in “messages that you can’t see but your subconscious will be affected by” are not a thing. en.wikipedia.org/wiki/Subliminal_stimuli

I remember watching a science show where someone wanted to demonstrate them, blatantly failed, tried again, failed again, called a psychologist to try better, and failed again. At the end the guy excused himself and said that it must surely be working for everyone but him, for some reason. Except no one actually managed to get it working, the guy who invented the concept later admitted he faked the result.