It sounds like your problems at 16 and your daughter's now are not very similar? If your mother put you in the hospital as a "disciplinary tool" it sounds like you did not choose to go and you and she had obvious differences of opinion about your behavior :-) I know with my stepmother, I was doing anything/everything to resist/"fight back" in our lack of communications war. But, I was more anxious than anything else and think if I had been hospitalized, I would still have been too anxious to "care" about drugs, etc. and to have gotten into them if exposed to them at that time (mid-70's).

I think you have to consider your daughter as herself and talk to her about hospitalization, maybe even tell her some about your experiences there?

Does she have a therapist; are all outpatient resources being used and failing?