I look at it like this: I am aware therefore I know I am. It's a bit like saying I know I am, so I know I am.
But it's a leap to say I am something objective, because the appearance of objects is within consciousness or awareness, and objects don't stick around. I say the core basic nature of existence is formless unbounded conscious being. It is only in consciousness that anything can be known or experienced. Therefore consciousness is the root and container of all experience.
If infinity is true, which is the case imo, then there can be no self separate from others. So I agree there is no self. But who can say that they know there is no consciousness?