Wow, were you training for an ultra marathon (50 or 100 miler)? You are already at a very low weight and have very little to lose. You might do better to focus on fat loss and not weight loss. Fat loss will make you smaller and leaner. Make sure your goal weight is in a healthy weight range for your height, age, sex ,etc. Plan out your meals the day before and spread your calories through out the day to keep your blood sugar level. Skipping meals can cause you to overeat at other meals. Balance and moderation in all things. You only have one body, take good care of it.