How much weight can I realistically loose by the end of November?

You can do this. I can't tell you exactly how much you will weight or what size you will wear but you might only drop 10 pounds but drop lots of dress sizes, or you might only drop 2 dress sizes but loose 25 pounds. You know? But either way I guarentee you will look better, get compliments, feel better, you're clothes will start to slip off you quicker and quicker! A good idea to add to all this would be a 20-30 min walk around your neighborhood 3-5 times a week.