This is probably a question as old as humanity, and I don't think we've found a better answer than the one provided in the Epic of Gilgamesh.

“What you seek you shall never find.
For when the Gods made man,
They kept immortality to themselves.
Fill your belly.
Day and night make merry.
Let Days be full of joy.
Love the child who holds your hand.
Let your wife delight in your embrace.
For these alone are the concerns of man.”

No one lives forever, not even in the memories of those they leave behind. It is a rare few whose names echo throughout history. You can, if you want, strive to make yours one of those names, but at what cost? It might be better to live your life, take what pleasures you can, love someone who returns your love, and try not to hurt anybody along the way.