The first thing worth understanding is that letting go of the past is not a single decision. It is not a switch you flip. It is a practice, one that asks you to gently redirect your attention away from what already happened and toward what you are becoming. And the reason it feels so impossibly hard is that your mind is specifically designed to hold on.
Daniel Kahneman's research on memory reveals something surprising: we do not remember experiences as they actually were. Our remembering self reconstructs the past using the peak-end rule — we recall the most emotionally intense moment and the way things ended, and we largely ignore everything in between. This means the version of the past you are holding onto is not even accurate. It is a story your mind built from fragments, weighted toward pain. You are gripping something that, in a very real sense, does not exist the way you think it does.
There is a concept from Brad Stulberg's work on passion and identity that speaks directly to this. He writes about people with hyperthymesia — a condition that gives them essentially perfect autobiographical memory. These individuals cannot let go of breakups, failures, or embarrassments because they cannot edit their internal story. The rest of us can. And that is not a weakness — it is a gift. You have the ability to rewrite the narrative you carry about your past. Not to lie to yourself, but to choose which parts deserve your continued attention and which ones have already taught you everything they had to teach.
One practical technique that research supports is self-distancing. Instead of asking yourself "why can't I move on," ask "why is this person struggling to move on?" — referring to yourself in the third person. It sounds strange, but it creates psychological space between you and the emotional charge of the memory. Journaling in third person has a similar effect. When you step outside yourself, you often see the situation with a clarity that is impossible from within it.
Another approach comes from contemplative traditions that Stulberg references — the Five Remembrances. These are five facts about human existence: you will grow old, you will get sick, you will die, you will be separated from everything you love, and your actions are your only true belongings. This is not meant to be depressing. It is meant to be clarifying. When you hold the brevity of life in your awareness, the past loses some of its gravitational pull. You realize that spending your limited time replaying what already happened is a form of waste — not because the past does not matter, but because the present matters more.
Dorie Clark writes about strategic patience — the discipline of investing in your future self despite no guaranteed outcome. Letting go of the past is its own form of strategic patience. You are choosing to redirect your energy from what you cannot change toward what you can still build. And the compounding effect of that redirection, over months and years, is genuinely transformative. The past shrinks not because you forced yourself to forget it, but because you filled your life with enough new meaning that it no longer dominates the landscape.
Start small. Notice when your mind drifts backward, and gently guide it to the present — what are you doing right now, what are you building, who are you becoming. You do not need to resolve everything at once. You just need to practice choosing forward, again and again, until it becomes your default direction.