I don't envy you, what a hard decision to make. I went to a carry-in on sunday and spent the last half hour talking to a young woman (20-something) about how she has spent the past 3 Christmases in jail because of arrests related to her drugs and alcohol use. THREE Christmases! This will be her first sober Christmas. I don't know if this suggestion would help, but she said that the last time, she went from jail directly into a half-way house for women addicts, she realized that she simply couldn't keep clean on her own. She is now coming up on 1 year of sobriety/clean time.
You know that you will have support here on PT whatever decision you make. Thank God you are there for Jenna.