If one denies that, when the meaning is true, then the meant is what is so, one rejects propositional truth. If the rejection is universal, then it is the self-destructive proposition that there are no true propositions. If the rejection is limited to the dogmas, then it is just a roundabout way of saying that all the dogmas are false.
Just look at life with more playful eyes. Don't be serious. Seriousness becomes like a blindness. Don't pretend to be a thinker, a philosopher. Just simply be a human being. The whole world is showering its joy on you in so many ways, but if you are too serious, you cannot open your heart.