Yep my daughter had a friend introduce her. She spent 5 years on it. 100% dependent on it. Entire time swearing up and down it didn't affect her. Of course we could all tell.

Only when her finance had a psychotic breakdown and tried to kill everyone from it did she finally get off of it. Was 2 months before he didn't sound like an anime villain who was going to take over the world.

She keeps commenting at much more energy and less depressed she is, how she isn't always irritated at everything. She had no idea it was affecting her like that. For us we have our sweet loving and caring daughter back.