I've lost 56lbs but need help losing last 17. Help??

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I've lost 56 lbs. so far which is great but I'm having trouble losing my last 17lbs. Any suggestions?? I do circuit training and kickboxing 4 time a week, sometimes 5. I've noticed I've been wanting to cheat more with foods and I need to curb that but I'm still ususally within my calorie range which I have set at 1300. Sometimes I eat my exercise calories but usually only half if that. Help!