The problem is not entire self ignorance. Since everyone say 'I am' there isnt a real self ignorance for anyone. Everyone already is aware that 'I am', hence its not a "abhava" or not knowing of self.
The problem I face is not due to my existence, but I dont like the limitations I am subject to. I do not like being subject to various limitations, having inferior attributes, and being considered lesser than others, not being happy and so on. These are my issues, and these are what self knowledge solves.
The reason self knowledge CAN solve such problems, is because it happens to be the means to reveal myself as limitless.
To reveal myself as limitless, I need an understanding of the word limitless,as in, what is the sense in which the word is used.
The word used is brahman, which means limitlessly big,or an unqualified big.
Now ocean is big, sky is big, yet there are boundaries, and also it appears to be outside of me the knower.
Whereas, brahman has to be a limitless unconstrained big, and cannot exclude either the knower or the known.
So we hence use the word "consciousness" and "existence", "chit" and "sat".
Chit means the reality of knowledge and knower, sat means the reality of knowledge and known, the same sat is the same as chit also. Chit is sat and sat is chit.
So chit, or sat, or satchit is the reality of knower, knowledge and known all three , and that is what you are.
You see, I tend to think, I am only the knower. But the knower, is something its just a title, given to the content of the knower w.r.t the knowledge and known objects.
So an accurate understanding is that I am the content of the knower, and this content of the knower per the shastra is also the content of thought, or knowledge. When there is apple thought, space thought, gold thought, cow thought, there is an invariable presence of consciousness in all these thoughts isnt it.
We say apple 'is', cow 'is', gold 'is', we imagine all these in our head, apple consciousness is , cow consciousness is, gold consciousness is, pot consciousness is, clay consciousness is, road consciousness is, space consciousness is, time consciousness is, television consciousness is, screen consciousness is, consciousness is.
When we say consciousness is, there is no thought, no idea, no form, no object, yet there is something "is" , for which we say consciousness, the word consciousness DOES have a meaning, because we did use it for apple consciousness, cow consciousness etc. We can also use the word "unqualified thought", that 'is' , is a being.
So that being we have no means to know, because it isnt an object, that is where shastra says it is the subject, chit. Or rather truth of the subject "chit".
Same way all objects themselves, have their reality in something else, and that something else , we say as "sat" or self existent, and that is none other than same chit, atma.
Hence atma is satchit, the reality of entire universe, knower, known , knowledge, and satchit is hence limitless. It is the reality or satyam of entire mithya jagad, hence is limitless.
So you know yourself as satchitananta,,brahman, the limitless self existent consciousness.
That is what we call as self knowledge.