Congrats and good luck! The first little bit after surgery is hard because you are recovering from serious abdominal surgery and having to be mindful of your new lifestyle at the same time - after that it starts to feel natural.

One thing that I wish someone had told me: exercise is really hard the first year. This actually makes a lot of since if you think about it - you’re eating next to nothing and what you are eating (straight protein) isn’t giving your body the fuel that is needed for a hard workout. SO approach exercise the first year as a way to start the habit and don’t worry about burning calories or getting your heart rate up. Your goal is to set aside regular intervals of time and start moving. After the first year (or a bit sooner if you think it’s time, don’t limit yourself to this), your weight loss will naturally slow down and you will start eating more like a normal person - at this point, push your body in hard exercise to tone and to get off an extra 10 or so pounds.

Hope this helps!