Traveling Through the Troubled Times of Ancient Times, Marrying into the Mountains to Survive

[Farming + natural disaster + system + plane trading + infrastructure] Yu Xia, a person who grew up in a peaceful era, inexplicably traveled to ancient times where wars were turbulent and natural disasters were constant. Is there any way to survive? The father was injured while rescuing someone and was bedridden. The younger brother was young and had no one to support him. He saw that there was no food left in the family! "Ding! Congratulations to the host for upgrading the delicious farmhouse store to level 2!" "Ding! Congratulations to the host store for upgrading to level 2. The reward can display the weather for the next three days!" "Ding! Congratulations to the host for exceeding 10,000 system coins in sales! You will be rewarded with a lottery opportunity!" "Ding! Congratulations to the host for exceeding 15,000 system coins in sales! You will be rewarded with a lottery opportunity!" A series of "dings" from the system immediately confused Yu Xia. I'm so hungry! I'm so hungry!