SOunds like you're really excited about this, but be careful. It seem slike you're taking on a lot, going from almost 0 to nothing in a short period of time. This can lead to a quick burnout. There's no shame in starting slow. Just listen to your body and find a workout program you can sustain for life. Also, don't get too tied to the scale. It's not unusual to see no loss in the first week, especially if you're adding exercise after a period of not really doing any. The muscles sometimes hold on to water, and this will show as no loss or a slight gain on the scale. Remember, be patient, give it time and form lifelong habits. Good luck!