One of the questions that has haunted you: Would knowing have made you dumber or smarter? If, one day, a milky portal had opened up in your bedroom and an older version of yourself had stepped out and told you what you know now, would you have listened? You like to think so, but you’d probably be lying; you didn’t listen to any of your smarter, wiser friends when they confessed they were worried about you, so why on earth would you listen to a version of yourself who wrecked her way out of a time orifice like a newborn?
There is a theory about time travel called the Novikov self-consistency principle, wherein Novikov asserts that if time travel were possible, it would still be impossible to travel back in time and alter events that have already taken place. If present-day you could return to the past, you could certainly make observations that felt new—observations that had the benefit of real-time hindsight—but you’d be unable to, say, prevent your parents from meeting, since that, by definition, had already happened. To do so, Novikov says, would be as impossible as jumping through a brick wall. Time—the plot of it—is fixed.
No, Novikov’s time traveler is the tragic dupe who realizes too late her trip to the past is what sealed the very fate she’d meant to prevent. Maybe you mistook your future voice shouting through the walls for something else: a heartbeat pacing and then rapid with want, a purr.