I have a folding stepper it burns only 610 calories and hour. I'm eating healthy I'm eating oatmeal unenriched 2 a day and chicken with whole wheat bread extra romaine lettuce and a hint of ketchup.

I'm 154 5'4 I used to be 160. How do I lose enough weight I want to be in the 120-136 range. I have a few weeks intill a holiday I want to aleast lose 10 before it it's on August 18. And I wanna lose the rest of the weight before September 4. :(