Sorry this is long, but I have been there.
Your daughter really had a melt down.
She needs to take ownership of this whole situation. You need to grant her this ability. I have been there and it is very hard, but you have to do it for her sake.
Stay calm. have a cup of tea. Go to your own room and close the door. No longer ask about homework, no longer ask if she has started it, completed it or turned it in. Her grades need to be HER grades. If she gets some F's for the day, SHE needs to figure out how to get them adjusted or made up. So what if she gets a B or C every once in a while?
I always told our daughter, I would rather she get an B or C in a class that she was really challenged in rather than an A because it was easy.. We always asked her, "Did you do your best?"
Your daughter signed up for the IB program and I am POSITIVE they explained that there would be way more work and way more dedication needed to stay in that program.
She also signed up for the Journalism class. Guess what? Most electives in high school are not blow off classes. It may seem like busy work, but there are kids that take Journalism because they are seriously interested in this subject. Journalism is all about WRITING. Our daughter to a Home Ec Class and also had what she considered some busy work in there, but she treated it just like any other honors class so it could help her GPA.
Even if your daughter took Art classes in High school, the first semester contains a lot of reading about Art History with lots of reports. Kids are always amazed it is not just coloring and cutting..
She is in the big time now and I am assuming her high school is one of the top schools in your area. That means there is a lot of expectations from the community for these teachers and students to always be performing at their best. The first semester is tough, because it is an adjustment time.
Since she has breezed through school so far, she needs to go back and learn basic organizational skills and study skills. SHE needs to solve this, because she is the one that will have to do the work for the next 4 years.
I agree if she does not have a week on 2 page agenda, she needs to purchase one right away. She needs to learn to write down her assignments each class period with due dates. When she gets home she needs to have a snack and take out the agenda and organize how much time she will need for each assignment for the evening and begin tackling it based on these times.
She also needs to place the due dates for projects and reports in her agenda so she can have goals for completion along the way. The teachers no longer remind kids"that at the end of the week,, such and such paper will be due. It is just like college used to be for the rest of us.
If you all are sharing a computer, you need to let her know when and for how long you will be needing it each evening so she can schedule around it and she needs to do the same with you.
There will be times, that she may not be able to complete an assignment, so SHE will need to contact the teacher and let them know that she needs an extension. This is acceptable to most teachers. Brain storm with her when these things happen. "What do you think is a good way to handle all of this homework?" What is the priority for tonights homework? This weeks homework?" You said you had a big project (report) due soon, How can I help you with that? Do you need to put together a study group? Do you need to go to the library?
Her behavior is totally unacceptable. Yes, teenagers do become more emotional. They think they are all grown up, but until they can behave and react maturely, they are not grown up.
She still needs to show you respect. When she becomes frustrated, go back to the toddler days and tell her "use your words"." I need you to not use that tone". "I do not respond to that tone." Remind her to take a few minutes and just calm down and get her thoughts in order. Ask her if she would like a cup of tea. Maybe a bowl of fruit. This will give her time to settle herself down and find clarity in the situation.
This is not unusual for teens and especially teen girls.. Is she PMSing? I hate asking because it is not an excuse, but now that I am older I can admit that it really does have an affect on my behavior and I have gotten many women and girls to admit they know it also effects them. It is frustrating and embarrassing when we become over whelmed and we just lose it, but it is a real condition. She needs to track her days so she can be honest that on these days she will have to hold her emotions together even more. If it becomes really serious, she needs to speak with her Doctor about it.
Our daughter was a student at an exceptional High School. She was not in the top 10% of her class. She did take all Pre AP and AP classes. She also graduated with a special Diploma in Visual Art also. She was National Merit Scholar, she applied to 9 top tier colleges and was accepted to ALL of them.
She did not make all A's. That was not her goal. Her goal was to do her best.
She is now a Jr. (be still my heart) in College and loves it. She was totally prepared for the amount of work, she had great study habits. She still freaks out. We always remind her, "just do your best".
I know how you feel. It is hard letting them do this on their own, but you have to let her know you are there, but this is all about her. You know she can do this and you are willing to listen and help her find solutions, but in the end this is her education. I am sending you strength.