A few years later, having forgotten the original time/spot, I tried the same thing again somewhere new. Still nothing. I kept this pattern up every few years, with disappointing results.
To this day I have yet to be visited by a future version of myself. But I'm convinced that's not because I never learn how to time travel. Rather, I am simply doing a poor job remembering which point in time I'm supposed to travel back to. As soon as I lock that down, I'm sure it'll happen.