What is time? Are there past, present, and future, each separated from the other? But strictly speaking, time is not separated. There are no three distinct realities of time. Stephen Crites writes: "Only the present exists, but it exists only in these tensed modalities." [See Stephen Crites, "The Narrative Quality of Experience," The Journal of the American Academy of Religion 39 (1971): 291-311 (301)]. He goes on to say: "They are inseparably joined in the present itself. Only from the standpoint of the present experience could one speak of the past and future. The three modalities are correlative to one another in every moment of experience." [Ibid.]
Jerome Bruner writes: "Narrative imitates life and life imitates narratives." [J. Bruner, "Life as Narrative," Social Research 54.1 (1987): 11-32]. Jocelyn Bryan similarly observes: "We are living narratives." [J. Bryan, Human Being: Insights from Psychology and the Christian Faith (London: SCM, 2016), 44; 51-74].
I agree that there is no past or future separated from the present. We only live in the moment, while reflecting on the past and the future. Namely, "our narrative of the past and our imagined future narrative impact on our every moment." [Jocelyn Bryan, "Narrative, Meaning Making, and Mental Health," in The Bible and Mental Health: Towards a Biblical Theology of Mental Health, edited by Christopher C.H. Cook and Isabelle Hamley (London, SCM: 2020), 4].
I cannot change the past. But it affects me today. I can change the future because I can reimagine myself today. We live in the present as always.