70 kgs! this is 154 lbs, are you a woman? if yes then how tall are you? as you can't possibly be a guy and want to lose weight. But anyway, you must tell us your gender and your height and I will be happy to help. You need to find out how many calories your body need at your height and weight ad gender, check online and find a calories calculator and enter your age, weight, height and gender then you will find how many calories you need to eat per day to maintain this 70 kgs, so if you need to lose weight then eat less than these calories. Assume they will tell you that you will need 1700 calories for daily living, you will then need to eat 1200 calories and workout for an hour a day to burn some 200-300 calories, this way your body will have 700 or so claories deficit, to burn kg of fat (which is 2.2 lb) you need to burn 7000 calories, so to lose 1 kg of fat based on the numbers above you will lose 1 kg (2.2 lbs) every 10 days, these are just numbers and theories, you could lose much more since you are 24, the older you are the harder. Also keep in mind that your food that you will eat at that certain calories intake I mentioned above must be 40% protein 30% carb, 30% fat (good fat only like peanut butter or olive oil), eat much less carb and eat more protein but stay on the calories counting and the calories deficit as you will not lose weight without counting the calories and do some workouts to burn and burn, its simple formula, try to calculate everything that you put in your mouth, do not eat out, cook all of your food, calculate every single shit you are adding, there is no secret you must do it right, no BS.