Depression and normal teenage angst are often hard to differentiate, even for a parent living with a child day in and day out. If a child is expressing feelings of worthlessness, it is worth it to pursue help. And if one therapist doesn't or didn't help, it doesn't mean another won't. And if it is clinical depression, medication supervised by a doctor might be the answer.
Just don't ignore the little warning bells. Sometimes this is all a child is willing to send off, and sometimes kids do drastic, permanent things in a state of depression, so the consequences of ignoring the signs are too high for everyone,
