If you want to be inspired to do great things, stop by Things Other People Accomplished When They Were Your Age and see what great people had accomplished long before they reached your age.
And if you want to be inspired to put off doing great things, look at what people accomplished when they were older than you. Neil Armstrong didn’t even set foot on the moon until he was 39. Heimlich didn’t invent his famous maneuver until he was 54.
And did you know Michaelangelo didn’t even start working on the Sistine Chapel until he was 33? What a slacker. By the time I had turned 33, I had already visited the completely finished Sistine Chapel.