Everyone who has been born of God overcomes the world. John describes not a future task but a present reality. You are born of God. Therefore you overcome the world. Not through struggle but through origin.
The world wants to tell you: you are too weak, too small, too unworthy. Clarity in thinking means: you know where you come from. From God. And whoever comes from God is an overcomer, not a victim.
Today you may think clearly: I am born of God. The world does not have the last word over me.