Bread will last for a period of up to 7 days max before going bad.
So you should eat the bread within 7 days before it goes bad and then buy more fresh bread when you need more bread.
Bread doesn't have a good long shelf life like other foods do so you cannot really store bread for long periods of time but it's best to place bread in a cool dark place such as the pantry or inside a bread box.
The pantry or bread box will prevent the bread from going stale too quickly but still even then the bread should be eaten within 5 to 7 days.
Then replace the bread with fresh bread.