How to modify post's order on my homepage

Hello,
Sorry for my thread in older post ??
This is my request :
I would like to modify the order of my posts on my homepage.
Actually the first row (line) is showing posts from left to right. And the others rows are from the right to the left… Is it possible to have each lines from the left to the right.

My site is on maintenance. But I create jpeg to explain my problem :
Actually, this is my home : https://juliobona-lillebonne.fr/images/home.jpg
And this is that i would want : https://juliobona-lillebonne.fr/images/home-i-would-want.jpg

Great thanks !

Thanks !!!