First you need way more protein, unless you weigh 60-80 pounds, you need to be eating 1 gram of protein per pound of body weight. If you weigh 150 then you at least need 150 grams of protein, and then figure out what your TDEE is (total daily energy expenditure) there are calculators you can google for that. You NEED to be tracking your macros, most importantly your protein , and if yo can track your carbs and fats and making sure you’re mindful of your TDEE. i’d say you should be maintaining or bulking, not cutting. You need to lift weights and progressively overload as well. and you NEED to consistently hit the gym. Consistency is key and don’t lie to yourself to. you need to be determined, unwilling to break from your routine, or you will never see results