of how hard you are working out, when you are vague about what success means as far as your goals go bad feelings will start creeping in. this is the reason why you must specifically define what you want to accomplish instead of just saying "i'm going to start to work out".
you want to have goals that you can actually measure. you will also want a plan that goes into detail about what you will be doing exactly to reach those goals you set for working out. you must also figure out whether your workout sessions will be 45 minutes long and how many days a week you will be 