Need way more info. besides this picture, it's at a bad angle too so you can't really tell what's going on. One thing is for sure, you dont have nearly enough light. That's plants stretching like a first baseman for the Mets! Definitely moisture issues, probably too frequent of waterings. How much light do you have? how often are you watering? where'd the seeds come from? temperature in the grow room? humidity? all of these help big time when answering questions. Notice how the leaves look like they're sagging? that's cause they're filled with water and wont need any for a long time. The leaves should be pointing up at the sky like people in church who hold their arms up in praise. This may be way off, but for that size plant, the space between the sets of leaves "nodes" shouldn't be more than an inch or inch and a half. otherwise she's stretching. as it gets bigger that changes, but that's my rule of thumb for babies. Goodluck with the grow, stay with it!