Some people have already mentioned each of the points I will highlight, but three things stand out to me.
One, every time I go out on course, I'm just playing against myself anyway: did I shoot poorly, average, really well, or the best round I have ever played? Did I choose the right disc? Off the tee? For my approach? What would I do differently, and how could I improve my game for the next time? If you are frustrated about not being able to ever hit a three, I'd say.. Work on your accurate distance, then a solid approach, and always work on your putting, and think about it as improving your game, not lowering your score. The score will come.
Two, ratings are based on round scores, not on individual hole scores. So those high-rated players might be able to par or hit a crazy long deuce putt on that hole. So what? I know I can't do that yet, and I'd drive myself crazy trying to think I can. If you can never take a three, then you're just going to have to find another stroke out there. Either way, the one hole is always part of a larger round.
Three, par is so subjective. When I first started playing my local course, it was about a par 65 as marked. But the people that did the original marking had no idea what "real" disc golf "par" was, by way of the PDGA guidelines. Those guidelines are one, just guidelines, and two, written to make decisions just like this one. Now the course, with its most recent updates, is a par 54 from the white tees and 57 from the blues. And the course, to me, seems loads shorter than it used to feel. When I first played it, I thought I could never break 50. I knew I would someday, because I knew I wanted to. Then, once I hit that magic 50, I knew I had to shoot 49. Now my best local round is 44, because my game just kept getting better. And I think there is only one hole I have never deuced.
You'll hit a three. But if you don't? So what? Enjoy the challenge, and work on getting 4's consistently. Then the threes will start coming faster than you know it.
(FWIW, this hole sounds like a Wraith, Buzzz, VooDoo for a three in my game.