I take massive action towards my goals without fear

Without fear isn't on offer. Anyone who has sent a message that mattered knows what the hand does on the way to the button. Fear isn't a signal to stop. Mostly it signals that something counts. People who look fearless have simply stopped requiring the feeling to leave before they move.

Massive is negotiable too. One decisive action beats a week of preparation that resembles motion.

Do the frightening one today while still frightened. That is the whole trick, and it's less a trick than a habit you build by doing it a few times.