Open Question: Lossing Weight!?!? What else can I do!!!?

Ok so I am a 19 year old Female who is overweight! I want to loose weight really bad and I need help on doing so. I currently have No Job so I am not making any money. I cannot afford to go to a gym or eat really healthy.. We own a treadmill so I have been walking in the Treadmill EVERYDAY!!! This whole week almost a week and a half, I have been on the dreadmill Everyday walking 2-4 miles a