What about life after death, is this a Satanic teaching propagated by Islam, Christendom and others?

Satan does not propagate life after death; it's death after death.

Since this is what you believe no answer will convince you otherwise.

Enjoy life but you will come to face the reality and you will be reminded.

Qur'an 27:67 - And those who disbelieve say: "When we have become dust - we and our fathers - shall we really be brought forth (again)?

Qur'an 34:7 - Those who disbelieve say: "Shall we direct you to a man (Muhammad صلى الله عليه وسلم) who will tell you (that) when you have become fully disintegrated into dust with full dispersion, then you will be created (again) anew?"

Salam After death we will live in barzah in line with our amal jariah (good deeds) during we live on this earth

The truth Always hurts. haha.

do not regret it at some point, thats all i can say..

What is Satanic about it?

Billions of people (not i) believe it