Empty as HSP with dissociation

Due to the presence of the mental disorders PTSD, (open and hidden) narcissism, codependency, gaslighting (cunning manipulation technique of hidden narcissism) and TPS in the family, in which I grew up, I, as HSP, have confusion in my head. I wonder if that confusion really exists. I wonder if life really exists. Because as humans we are busy every day with phenomena that are not tangible. What is not tangible does not really have to exist. It may be that we as humans are busy every day with phenomena that do not really exist. Our brains and senses ensure that every day we are busy with phenomena that are not tangible. And it seems that more and more people, in our world of about 7 billion people, will have mental illnesses. Life is a mystery to me. Maybe there is in fact nothing at all, but our brains and senses say that there is something. If there is nothing, there is a void. As HSS, I can consciously deal with thoughts, feelings and emotions, even if they may not really exist.