yeah, sparkles is right, don't beat yourself up. get up today, dust yourself off and start again. This is a lesson learned for you because if not you wouldn't feel so rotten. You'll think twice before doing it again if you think really hard about how you feel now! Also, maybe you could think about having a different 'treat' when you feel like splurging like makeup or perfume, clothes? whatever!? when i feel weak if i'm preparing the dreaded f work for my family, ii just think that ss is not forever, and soon, i will be eating again! It's a short time out of a lifetime when u really think about it!
You'll be fine! keep at it! well done on the interview by the way! xxx