Welcome! I'm pretty new here too! This board has been absolutely wonderful for me. Your motivation will get even stronger as you see the progress you'll make in such a short time. Go ahead and buy those jeans! I have mine hanging on my closet door and I will get into them one day soon.
Everyone here has been where you are so never be afraid to ask questions. I constantly read information so I can make good choices. Let the pros here help you like they have helped so many others.
Have a wonderful day!