I've interviewed 5 founders of billion dollar startups.

Here's what I learned:

CTFU

"Catch the F*ck Up"

Startups are about speed.

If you don’t have urgency, you lose.

Successful people don't find hard things easy to do.

Instead, they've trained themselves to be better at hard things.

Create habits so small that they are painless.

h/t @JamesClear

Be short and to the point with important people.

Co-founders aren't people you meet at networking sessions.

They're your friends.

Get your smartest, hardest working friends and convince them to start a company with you.