Congratulations.
When I was 30 days from surgery I started creating a list of "50 things I want to do," I added it to my WLS journal which I updated every two or three days. After surgery whenever I accomplished something on the list, I would cross it off and add a comment. For instance #1 was "wake up after surgery." On 3 April 2003 I crossed it off with the comment "I did, in fact, wake up after surgery." I included what I call odometer goals, like weighing 4--, 3--, 2--, and clothing sizes. The fun ones where things like running, kayaking, dancing, etc. It was fun.
Review your plan documentation. You should understand everything about your plan. If you're doing protein drinks, what are you going to do if they don't taste right, or they make you gag. Have options available, even ones you don't think you'll like. Be ready for the worst.
Then your eventual food plan. Do you understand the principles of your plan? When you are out somewhere and your normal choices aren't available you need to be able to apply the principles to make a good choice. When you post a thread here asking for ideas on what you can eat, be sure to tell us your plan so that we can offer suggestions within your plan.
In the first few months you can't not lose weight. If you go off plan and make bad choices, you will still lose weight. Your weight loss will be a positive reinforcement of your bad choices. When the weight loss stops the new habits you've built will be the bad ones. if you stay on plan consistently the weight you lose becomes a tremendous positive reinforcement for your new good habits. This helps make your new habits your new normal.
You have some rough times coming up. Surgery hurts. Healing takes time. It will be hard. You will get frustrated. You will have to learn how to eat again, both mechanically (small bites chewed ridiculously well) and your plan. Be patient. In a short time things will start getting better. And better.
Wow, this post sorta got away from me.
Enjoy the ride.
Tek