its stretched BIG TIME so start over....
read before you stick a seed in the dirt.
read before you post a sex question.
and this is the DIY forum... post this question in the beginner section please.
wow. i have never seen a plant that stretched.
you have your light WAYYYYYY to far away. im not even sure if you can salvage that.
you might have to try getting some other lights on the sides and see if you cant get growth from the lowest node..... but honestly its probably to late. sorry man. better luck next time.