Self-realization is simply coming to realize something that is already the case. It is a falling away of the added-on concepts about your Self - the imagination called "I am a body", "I am thinking".
So any effort to reach this is an effort to change experience - simply because right now is IT. Experience doesn't need to change. Only the idea that there is a separate, finite body-person which is experiencing a world changes naturally, when that false belief falls away.
So it's not a change of the world, not a change of the behavior or condition of the body or mind. It is noticing that world, body and mind are experience. And you are that which is experiencing, right now.
So notice this. Notice that the only quality you can give yourself is experiencing - noticing - observing - watching - cognizing - feeling - knowing. If we talk of a world - in other words - the subject vs. the object - then you must be the subject, yes?
So what is the subject, right now? What really is it? What is it's content? What is it's nature?
The subject of any and all experiences is empty - it is not locatable - it has no attributes. It is not another thing in experience. It is not definable in terms of starting and ending, either in space or time. It is simply HERE. It is a presence. You are clearly HERE but that subject is not findable.
That subject is not a thing from which you are knowing - it IS the knowing - it is like an open space or capacity. It is a mysterious, unexplainable, indescribable presence by which the world, body AND mind are known. Is this not blindingly obvious?
But because it's unknowable - the mind has to create imagination for it. It has to project something upon that subjective presence, simply because the mind can't deal with the unknown, the unfindable. It's scary. It's unsettling. Like wandering into a dark room - the lights must come on.
But there is no light which can illuminate the subject - it cannot become objectified. It IS the light by which the world, body and mind are known.
It is always there - overlooked. It is not findable but it is always obvious and present. It's YOU. The presence or activity of knowing.
The subject of all experience is always awareness. See if this isn't the case.