Hello @walidouvich welcome to Steemit please read the below information to know what is required of you on this post

https://steemit.com/hive-172186/@cryptokannon/achievement-1-mentor-by-cryptokannon-verification-through-introduction

Just edit this post and add all the necessary information, again change your verification photo write the current date on the paper, your country, username and Steemit. Drop the link to your other social media handles too. You're free to tag me when you're done.