Been really bad lately...need some support

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Last summer i wasnt happy with how i looked so i joined the gym, ate healthy (with the weekly exception of course!) and lost about 16 pounds. However, this summer i'm having a really hard time eating healthy, i keep wanting to snack constantly, im not as motivated to work out, and getting really frustrated with myself for having no self control. I've gained back about 6 lbs and it seems like i can't get it back off. When i do try to be good i end up just saying f*** it and pigging out because i'm not seeing a difference on the scale when i weigh in everyday. And lately because of this overeating from frustration i keep adding on more and just seem to become more upset......Looking for some support and advice from others who are in similar situations. Thanks xo