The Archangel Michael is restraining The Antichrist till his imminent appearance in the world.
“And now you know what is holding him back, so that he may be revealed at the proper time. For the secret power of lawlessness is already at work; but the one who now holds it back will continue to do so till he is taken out of the way.” (2 Thessalonians 2:6-7)
“Immediately after the distress of those days,
the sun will be darkened,
and the moon will not give its light,
the stars will fall from the sky,
and the heavenly bodies will be shaken.
Then will appear the sign of the Son of Man in heaven. And then all the peoples of the earth will mourn when they see the Son of Man coming on the clouds of heaven, with power and great glory. And he will send his angels with a loud trumpet call, and they will gather his elect from the four winds, from one end of the heavens to the other.” (Matthew 24:29-31)
Wait in the state of grace for the Angelic Trumpet Call and reject false prophets and False Christs.