Welcome to icliniq.com.
PCOD does lead to some hormonal disturbance, do you have any symptoms of PMS? Premenstrual syndrome? Because that might be an explanation of your mood swings and irritability. As for the lack of concentration issue, start small with some breathing exercises and relaxation techniques, try guided meditation.
For procrastination, it is often a reaction to stress, because we know the the work is stressful, to avoid it, brain goes on procrastination mode.Start with breaking the task in smaller chunks and do it like if you have to finish two chapters in a day, divide the number of pages per hour, then divide in 30 minute slot. Then just put an alarm for 30 minutes and read. Try this out and let me know if you need anything else.