UK, accountability buddy/buddies

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Hey, so im pretty new to the whole weightloss thing. I say every summer (when the weather is better) that I want to lose some weight and never do. I could do with some help staying on track, whether it be just someone to chat to or someone that I can have a 'comp' with. Ideally around my age in the UK, but anyone is welcome. Thanks and I hope to find someone that can help me change for the better.