The booklet Nan Yar? (Who am I?) elaborates on the "I" and Self-enquiry: - Ramana Maharshi

There are only two ways to conquer destiny or to be independent of it. One is to enquire whose this destiny is and discover that only the ego is bound by it and not the Self, and that the ego is non-existent. The other way is to kill the ego by completely surrendering to the Lord, realizing one's helplessness and saying all the time, 'Not I, but Thou, oh Lord', giving up all sense of 'I' and 'mine' and leaving it to the Lord to do what he likes with you.

In accordance with the prarabdha of each, the One whose function it is to ordain makes each to act. What will not happen will never happen, whatever effort one may put forth. And what will happen will not fail to happen, however much one may seek to prevent it. This is certain. The part of wisdom therefore is to stay quiet.

I want you to dive consciously into the Self, i.e., into the Heart.