Hi, your girl has long legs too ( little JOke) . In your next transplant, just dig her deeper. But that should be soon before she grows more leaves, then she falls down because of the weigh. take the little stem between your first 2 fingers and shake her softly. so the stem is fatting up. give her more airflow( shaking stem)
and go much closer with your light. i would say something between 15 and 20 cm . so get a bigger pot, dig her deeper, shake the stemdaily.. give her airflow and get the lights nearer