If you are approaching this workout like it is just another WOD on the board and you need to beat everyone by clicking a blue button, you have already missed the point. It is a workout to honor a fallen hero. Your score or how you did the workout does not matter. What matters is your effort and the integrity you display in your quality of reps and encouragement of those around you.
Getting older does not mean you have to surrender your competitiveness. You may not be able to train like you are 18 years old but you can still train with intensity.