Your life is a painting. The day you were born you were a blank canvas, you were given a selection of paints (not an unlimited range) from which you were able to paint your life.
You only get one piece of canvas, your whole life only tells one giant overarching story.
Sometimes other people will come and paint on your canvas, sometime their work is good, sometimes it is terrible, often it is in between. Furthermore other people may stand just behind you and try to tell you what sort of life you should paint. This can happen because sometimes they are disappointed with their own canvas.
Fortunately or unfortunately though, this canvas is your life and it’s your masterpiece and at the end of the day it is your responsibility.