18yo British skinnyfat-victim hoping to improve her health

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Hello! I'm Larkin. I'm 18, neutrois, from the UK. I'm very much skinnyfat. My BMI is about 21 but my BF% is something like 30. I hope to lose fat and gain lean mass. If you have similar goals or stats and could encourage me, please add me! I'd like people to keep me on track. I went over my daily calories today and am feeling quite bad about it.