Has she visited a careers fair? or has she visited the career advice department at her uni?
What are her interests? What is her degree in? She needs to start looking for a job and get some routine in her life. Is she coming down to earth and realising that student life has finished and her student loan needs to be repaid? The fact she is so moody makes me think that she realises this.
My daughter compromised and took a part time job while looking for a 'proper' job. Although the part time was not her dream job she gained valuable skills and her boss was someone else to put down as a referee. It is not an easy time, but she will come out the other side. I know there will be lots more advice for you.
Foxie ps welcome to the forum!
-------------------- Life loves to be taken by the lapel and told "I'm with you kid. Let's go." Maya Angelou