I can provide a speculative answer based on the concept of time travel.
The idea of changing the past is a subject of much debate and speculation in physics and philosophy. According to some theoretical frameworks, such as the Novikov self-consistency principle, any actions taken in the past would be predetermined and consistent with the events that led to the present. In this view, attempting to change the past would ultimately result in a self-consistent loop where your actions in the past contribute to the events that caused you to travel back in time in the first place.
Alternatively, other theories suggest that time travel might create branching timelines or parallel universes, where changes made in the past create a new reality separate from the one you originated from. In this case, you would become an alternate version of yourself in the newly created timeline, while the original timeline remains unchanged.
Ultimately, the nature of time travel and its consequences are still hypothetical and subject to various interpretations. Different fictional works and theories present different concepts of time travel, ranging from the idea of fixed timelines to multiverse theories. Therefore, the exact outcome of time travel and the ability to change the past would depend on the specific rules and mechanisms governing time within the hypothetical scenario.