We all have different issues with why we are getting surgery and at what level and so on.
Don't just get hung up with the doom and gloom on this site or others. Most of the people with problems and ongoing problems stay here and they show examples of what goes wrong. They are a SMALL percent of what happens to the rest of us.
I've had 2 surgeries. Same level twice. First a micro then just fusion to permanently fix it a year later.
That was over 4 years ago. I quit smoking before the surgeries. I still drink moderately and swear a lot. So I didn't give up all my vices.
I started working out, in agony, before the first surgery. Very controlled and basic core stuff and walking. That and other programs were added as I recovered from the fusion. I continue to exercise 3-5 times a week. I don't just do exercise for exercise sake or just core for a specific part. I do it for all of me because that is what I need to work on. A balance. I've had my Body Fat Index down into single digits! Now it's like 10-15% and I can maintain it and not kill myself doing it.
My diet is more strict than it has been all my life. No, not to the point of going all Vegan, or Gluten Free, or whatever the latest diet craze is. Just some common sense and cut out the known really bad stuff. Not all the time. Eat good most days but 1 bad is no big deal. So you can still enjoy even the so-called bad foods.
You need to regiment yourself the most. Don't expect people on forums to do it for you, or having a PT make you do it every day. If you struggle with consistency get a workout and/or dieting buddy. But you need to take control and own it.
I participate in some sports activities that I do better in now that I probably would have 20 years ago because I'm in better shape. I have stayed smoke free and have no cravings for it. My alcohol is limited. Yes I have a glass of wine or shot of vodka when I feel like it. My diet is limited but not that hard to follow. I eat more small meals and less big ones. My sleep varies but it's much better than it has ever been. My pain level is at a minimum. Do I have bad days? Of course I do. As long as I stick with my program I have very few of them and move on. It's reality, it's life. I'm going on 5 years now. I got hardware. I feel it. It just is.
You can get there! It is a hard road to travel until you get some controls in place. Put your energy into what can you do to make it better, not complain about what can't be or what you lost. Life is change and regardless of your surgery you were going to gain and lose things anyway.
I've lost my marriage of many years. Changed my job and reinvented myself after 20 years of doing something very well. Then after 10 years of that I'm changing it again! The work place is crazy and the stress level is high. I have a lot of positive changes in my life and I'm happier today than I had been in many years.
YES YOU CAN RECOVER !!!