This is the verse in it's proper context:

(1 John 5:3-5 NIV) This is love for God: to obey his commands. And his commands are not burdensome, {4} for everyone born of God overcomes the world. This is the victory that has overcome the world, even our faith. {5} Who is it that overcomes the world? Only he who believes that Jesus is the Son of God.

https://enduringword.com/bible-commentary/1-john-5/

"Overcomers overcome because the blood of Jesus overcomes Satan’s accusations, the word of their testimony overcomes Satan’s deceptions, and loving not their lives overcomes Satan’s violence (Revelation 12:11)."

That's the victory that God promises. Not a victory in business or in some kind of success.