Definitely don't eat anything you'll regret when you don't feel so overwhelmed. You can do this. Listen to Doug and switch out your scale. A good scale can change everything. Also, it might just be water weight, give it a couple of days, stay faithful on FTS and when you weigh again it will be gone. I know how you feel, I got up this morning and finally weighed on my put away scale and had gained two pounds. I have been doing this long enough to not stress it though. Some days (especially us women) we weigh more than another day, so no need to freak...just try again in a day or so. You can do this, you can be successful but you can't let the scale dictate your feelings. It's about how you feel, how you are eating better, and how you're changing your life for the good.
Don't give up on yourself....this is you're life and you can do this!