I've been mulling this post over in my head the last few days. In addition to offering you congratulations on your achievement, I would ask everyone this question: when you achieve a scoring personal scoring milestone, do you factor the circumstances into how you feel about that milestone? For example, on my one trip to Bandon (18 years ago now), I'd played 36 holes one day and then went out late in the day on my own to play an extra nine, just thrilled to be there and basically thrilled to be alive...and as it happened I made four birdies in those nine holes. Which made the experience that much more special, but it wasn't as though I'd set out to post a score, or even that posting a score was my primary goal. Or the second time I ever broke par for 18 holes, it was on the Old Course in St. Andrews, but it was in the context of a serious matchplay match in which putts were conceded (including a five-footer for bogey at #7) and score was secondary: I was keeping a mental note of my "score" the whole way, and I knew full well that when I birded #12 I'd moved to one under for the round. I managed to make six pars coming home to both win the match 1 up and "break par", although when I think of that round I still put a mental asterisk next to the "71" in a way that I don't the "1 up" result, and in a way that I don't about my first time breaking par (in a round where from the outset I was intending to post a score for my handicap).
My point isn't to denigrate the achievement, by the way, but rather to marvel at the psychological aspect of milestone breaking. If you took 79 strokes to finish your round, then you broke 80, period. But I wonder if you'll feel better if the next time you break 80 - and it will be easier breaking 80 now that you've done it already - if you do so on a day where you set out to break 80, or to shoot the best score you possibly can over 18 holes, rather than on a day where you were only trying to sneak in a quick nine and then circumstances and your mindset changed. And I bet I would shoot lower scores in tournament play if I could start on the first tee with the mindset that I was just sneaking out for a few quick holes!