do i need to wait until it is approved to publish it ? or i can just publish right away??
No, You can just publish the video right away. It will take almost 24 hours for your gig video to get manually approved by fiverr stuff. If 24 hours passed but still your gig video isn’t approved then you should contact fiverr support by submitting ticket about your issue. Use the following link to contact fiverr support: https://www.fiverr.com/support_tickets/new