You are a funny guy. You and your “eternity” bit. Good luck.
Therefore, eternity should be no laughing matter for you. Some people plan for retirement which may equal 10 or 20 years or it may never manifest but don’t give one serious thought about where they will spend forever and ever. The soul never dies - it’s a spirit. On judgment day, you can’t plead ignorance because you were given every opportunity to know God’s Truth by His mercy. Hell is no myth. But for the grace of God, your next moment could be your last and that is something ‘you’ can’t control.
In the meantime, enjoy God’s glorious creations - the sun, moon, stars, air, the day, the night, the grass/trees, and all his natural food and your family and give thanks to Our Almighty Supernatural God.
Calling God’s Word mythical is the height of arrogance. You enjoy His creations but deny The Creator. Remember, The Creator has the right of ‘recall’ - so thank Him for this day that He has ‘given’ you.