"At 70 years old, if I could give my younger self one piece of advice, it would be the use of the words "fuck off' much more frequently."
That made me think, 'Well if you learned to say No, then you don't have to say "Fuck off" as much.'
Personally, I didn't learn the beauty of the word 'No' until well into my 30's. But oh the beauty of it. The freedom it brought to me. Have you learned the word no? What were you doing when you learned?