'I am 5ft 4in female who dropped from 200lbs down to 120lbs at my lightest but now I am currently 144lbs. '
What is the weight you WANT to be? If you have a goal weight, then getting there may mean more than eating at a 'slight' deficit. Cut your calories and see what actually works, limit-wise, for you. You could ramp up your activity but then you'd have to sustain that level until you again wanted to lose weight. It's much more effective to just reduce your daily calorie intake until you see some weight loss and then acknowledge that level to be your baseline for the weight you want to maintain.