The only way to survive is to have a sense of humour.
Don't live in the past. There's no point. You can't change anything. What a waste of time.
People with a sense of humor tend to be less egocentric and more realistic in their view of the world and more humble in moments of success and less defeated in times of travail.
I think you should be a child for as long as you can. I have been successful for 74 years being able to do that. Don't rush into adulthood, it isn't all that much fun.
I think one reason for a successful marriage is laughter. I think laughter gets you through the rough moments in a marriage.
Laughter gives us distance. It allows us to step back from an event, deal with it and then move on.