There are 2 cases:

Case 1: I showed my children to cut vegetables a few days ago.

Case 2: I showed my children to cut vegetables a few hours ago.

Do we say "Do it like I showed you before" for the case 1 and "Do it like I showed you earlier" for the case 2?

Is "before" used for longer time like like days or months or years earlier?

For example, "I have met him before" might mean "I met him some days/months/years ago"

Is "earlier" used for shorter time like hours earlier?

For example, "I have mentioned earlier" might mean "I mentioned a few hours ago"

There are 2 cases:

Case 1: I showed my children how to cut vegetables a few days ago.

Case 2: I showed my children how to cut vegetables a few hours ago.

Do we say "Do it like I showed you before" for the case 1 and "Do it like I showed you earlier" for the case 2?

Is "before" used for longer time like like days or months or years earlier?

For example, "I have met him before" might mean "I met him some days/months/years ago"

Is "earlier" used for shorter time like hours earlier?

For example, "I have mentioned earlier" might mean "I mentioned a few hours ago"