CSIRO Diet and Friends Wanted please

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Hi, I am new and want to lose my final 5 kg. I am 44 and have 2 kids, aged 11 and 7. Thought I'd try the CSIRO diet and it sounds very sensible and do-able. My big goal then is to MAINTAIN that weight and not slip into bad habits. Is anyone out there on the CSIRO diet or something similar?
I'd love some "friends" to help keep me on track and keep me accountable!