of course she's acting out because of the divorce. in my opinion, right now she needs structure and lots and lots of love. plan special mom and kiddo nights where you go to a park, or have a movie night, or whatever. but on regular school/work days, stick to a routine. up, dressed, feed the dog, brush teeth...etc. expect her to keep up with her reponsibilities, and discipline (like clockwork!) if she fails to do so. the best thing you can do for her right now is to provide stability and predictability. there will be an adjustment time, there always is when there are changes. but you're the mom, be stable and reliable and still show her you love her and will be there for her. it may not happen overnight but you'll get through it. just have patience with her, but allow her to make the decision of whether she acts responsible, or gets the discipline. don't make it personal or act like it matters one way or another to YOU. you're not the one who has to live with the consequences. she does. if she chooses that, then okay. maybe next time she'll choose to do as she's told instead of being disciplined. if it's up to her she's likely to think about it and make wiser decisions, instead of acting out in anger.