gaining & losing the same weight

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need some encourgement ,just need to know I Can do this ,im so tired of losing & gaining the same 5 pounds I Currently lost 23lb bieng on a very strick low carb diet now im trying to di it the healthy way its either im eating to less or too much ,excercing is not a issue ...need some good advice bc im trying hard to stay focus ,my appetite is ridicoulous btw I Enjoy eating the healthy & bad foods smhh .....help !