According to our current understanding of physics, as described by Einstein's theory of relativity, it is not possible for an object with mass to travel faster than the speed of light in a vacuum. The theory of relativity predicts that as an object with mass approaches the speed of light, its relativistic mass and energy increase, requiring an infinite amount of energy to reach or exceed the speed of light. This is known as the mass-energy equivalence principle.
Additionally, if an object were to travel faster than the speed of light, it would violate causality, which is the principle that cause and effect must occur in a specific order. This means that an effect cannot occur before its cause. If information were to travel faster than light, it could potentially lead to situations where the effect precedes its cause, leading to paradoxes and contradictions.
Therefore, based on our current understanding, it is not possible to travel faster than the speed of light and, consequently, not possible to "see" one's own past by traveling backwards through time. Time travel to the past remains a subject of speculation and is not currently supported by scientific evidence or theories.