Watch this YouTube video by Maha first.
Ya’atik El ‘afi means may Allah give you health. It’s a shami Arabic expression spoken to person who is working hard, studying hard, or doing something important. Response to “ya’atik El ‘afi” is “Allah ya ‘afik” which meaning is similar to the first saying. In that video you can learn how the words change when you speak to female or to many people.
You may study or work as hard as you want but please stay healthy. Ya’atiku El ‘afi.