good morning lea, have you noticed it's the people with kids that are on this early on a saturday??
You'va had one bad day in how long ? six months or so ? please dont beat yourself up about it, i have days like that on an almost weekly basis. And you are in the midst of decorating and having work done at home, which is always a stressfull and busy time, sometimes it just becomes easier to grab something to eat. You're not the 1st person to do it and you certainly wont be the last. We ar about to decorate our bedroom-watch me!!!
As regards the last half pound, well i guess thats up to you. you're not gonna be drummed off mins for not loosing it but there is the self satisfaction of knowing you did it. I suspect you are letting your bad day cloud your vision. it is only half a pound , not half a stone but i think if its was me i would want to go all the way.
Take care and have a good weekend