When I was 25, Abba was formed. After Abba I made three solo albums. Maybe I have been productive enough.
Well, I had a lot of help from my father with the soldering and so on, and he was very good at math and was fascinated with computers, and so I was fortunate enough to have a bunch of exposure going all the way back to high school - this was in the 1960s.
People may flatter themselves just as much by thinking that their faults are always present to other people's minds, as if they believe that the world is always contemplating their individual charms and virtues.