The key problem of consciousness is not what we have an experience of (eg. "you're a real thing that thinks and feels"). It's the fact that it is possible to have any experience at all.
Yes, it seems quite likely that a great deal of what we are conscious of is an "illusion" created in our brains, albeit some rather handy illusions. But that doesn't get even one step closer to the core philosophical problem of how we (or anything else) is able to experience anything at all (including the illusion of being a real thing that thinks and feels)