Creating the Universe

Can I assume that the world that I’m living in with all the systems and attributes (including me, you and the rest of the people and material things ) are just an illusion generated from my perception or my consciousness?
Is all my knowledge also the result of my consciousness? Does every person has each own set of world their creating? Or basically there is no other person. Actually if there’s only SOLE consciousness in this universe, it means “you” actually just part of my imagination/perception?