When Jenelle was first starting school I recall her mom telling her on at least two occassions that she was proud of her her for doing it.
The only way Jenelle and Barbara are ever going to learn how to get along is to obtain long term professional counseling to learn the proper tools to deal with each other and Jace.
I used to think that Jenelle just needed that to get her back on track, but now I really think that Jenelle is criminally minded. I'm not sure that can be changed without serious, in-house, care, perhaps in a prison setting. It's unlikely she will get any jail time with her pending charges, however, if she continues, I think future charges are quite probable that could land her some actual time.