Hello there and welcome!
I was sleeved about 8 weeks ago now and I spent countless hours, days and months before surgery stressing about every little thing that I read and heard. Right up until surgery I was still hyperventilating! I totally understand how you feel right now. Now I'm on the other side I have to say there are some major challenges for me to deal with. I have been big my entire life and this is like a baptism by fire to me. What do I mean by that? Well I knew I had a food issue especially comfort eating but I didn't realise how bad it was until after my surgery. Head hunger is my biggest enemy I crave food a lot of times during my day. Interestingly enough I don't really crave junk food anymore because I have avoided that from the get go, I just miss the comfort of eating more if that makes sense.
I did feel really drained and miserable months before surgery, I was so afraid of things going terribly wrong too, but I was Ok and it was worth it. I don't regret it and I am still early days. I have lost over2 and a half stone in that time and I am feeling much better than I was pre op.
Now, you say you don't enjoy healthy food but what do you class a healthy? You will eventually be able to eat chicken, lean beef and pork mince, fish, cheese, yogurts, protein drinks, protein puddings and much more. You will also be surprised how much your tastes and cravings change post op, I know! I didn't believe it either! I make a healthy version of pizza with my own low calorie wholemeal base and low fat protein cheese with ham. It tastes better than the one I used to have before and it is a much healthier version. There's literally loads of ways you can alter your favourite foods to make them lower in calories and healthier too. Get on Pinterest and tiktok there's so much content out there for bariatric surgery patients.
The main thing I should tell you with absolute certainty is that the sleeve is a tool not a quick fix. You really need to be fully prepared for the changes it will bring. You will need to put in the hard head work and explore a healthier way of life, Be willing to try healthier food and you may learn to like it. You will not be able to eat unhealthy food and get all the nutrients you need from your diet.
If you are certain this is what you want to do then you need to research. you said you don't like healthy food but you also said you don't know how to eat healthy. This is where your research will come in. I noticed you said that you can't find the discipline but when you have a smaller tummy you physically can't eat as much, you will be in a lot of pain and then you will throw up!
I wish you all the best on your journey, it's a hell of a ride! x