It's normal to be moody, but this sounds a little excessive. Your antidepressant should prevent this from happening, so if it isn't contact your doctor and let him know. It may be the Yaz affecting your hormones too much, maybe discuss this as well with your doctor. I hope this helps, it awful that you have to endure this every month. Take care.
YES it is normal. I get very different anxiety and depression prior to my period. Take your meds and try to realize it will pass and things do get better.