Reborn in the 1960s: I Bring Billions of Supplies to Survive the Famine

[Period setting + famine and disaster + planting space + female lead cultivates immortality + military marriage + this story is entirely fictional. Please don't associate it with any real people or events!]

Yun Xi sacrifices herself while trying to catch a criminal. When she wakes up, she discovers that she has transmigrated.

She has transmigrated to a parallel world with no recorded history.

She thinks this world's history has no famines or disasters, and won't bring so many troubles...

But it turns out things are even worse than the history she knows. She was naive. What is destined to come will come, and there's no stopping it. The future she knows nothing about is even more terrifying than the one she does.

When disaster strikes, what should Yun Xi do as someone who has transmigrated here? Turn a blind eye or help?