WITHIN

It's gonna be a constant battle, but until you conquer from within you cannot win. You have to first win from your insides, deal with your insides.
There is so much that stays stored up there and you may never find out till you're tested. You know how you blurt something out and wish you didn't and further question where it came from? Your mind is like a well. Little wonder why you're determined to do something but don't or do and it turns out bad, that's because your mind scooped up a bowl of inadequacy and sent to your brain and poof, there goes all your zeal and energy.
Until you affirm your mind,soul and spirit with GOD's word or whatever makes you happy and complete ( sure hope it's GOD), you cannot conquer from within and there you'd have it, your chance of conquering the world.
It's deeper than I can write, but first, you gotta clean up whatever weakly image you have of yourself, else it's gonna taint you and probably mar you. It's probably a voice in your head, to some it's a feeling and it comes only when you sense something good coming to you. You know how even the law of universe says, "You get what you see: Law of attraction", but if you see it and your mind holds you back from getting it or when you eventually do,you let it slip.
BOTTOM LINE: Breathe in Positivity and air out negative vibes.