Well Mandie sounds like you have all the motivation in the world to succeed.

Here are my tips for someone in your situation:

1. Because of your hormone levels and the predisposition to be tired, you might need to hold yourself accountable on a different level. Namely, a daily blog that details your exercise and your diet for the day.
2. Why do this? Because it helps all the people with significant knowledge on the topic when they can look at what you are doing. For example...your lack of weight loss can be attributed to a number of factors. But the bottom line is this: your calories burned throughout the day has come into line with what you are ingesting.
3. This means you'll need to either a) burn more calories through exercise and daily activity or b) eat less throughout the week.

Can't wait to hear more about your diet and exercise plans!

Michael