What is something you wish you had known sooner?

I'm in my mid twenties and in the IT market for years, Any comment is appreciated .
Cheers

wish i would know what made my parents brought me here, would definitely trya do something to prevent it.

Where my girlfriend lived so i could of met her years earlier

I wish I knew this site before so that I could reach to the materials that i spend hours to find

Yep, i sold a pubg crate with the player unknown bundle for a dollar when game first came out and now its like 2k plus kill me....

Wish I would have known that weed is a amazing plant like I know now

that my parents would get a divorce so i could mentally prepare for it so it wouldn't hit me as hard

Wish I knew how good heroin was when I was a wee lad (:

That the last four years of my life were completely poised for failure and essentially sabotaged by my father and all my highschool teachers.
Would have made me say "fuck it" and stopped trying to fix it and instead move on and do something useful with my life.

Either that, or I wish I knew the price of BTC in 2017 back in 2010

Wish i knew bitcoin was going to hit 19000 with it first came out