Carbo: It can be frustrating and irritating all rolled together. Sometimes we need to leave things in the past - your parents tried their best w/the knowledge they had to feed you at the time.
Introducing one new thing to your lifestyle is a good idea that the others have suggested. Even walking a bit each day can help.
Doctors will tell you low carb is the way to go to drop weight (I've had to during pregnancy, it works, but it can be hard if you are a sweets person, however I found I wasn't hungry all day when on it like I thought I'd be), but you might actually be one of these people who need a little of everything in moderation. Is it possible for your doctor to refer you to a dietician in your clinic? I know my DH has struggled as an adult w/weight. When he went she didn't pigeon hole him into one particular diet, rather she asked what had worked for him in the past, she asked that he keep a food diary for the week so she could refer to it to see food choices and then they worked on a plan that would work for him, tweaking as he went along with the end goal of weight loss. I know for me on this journey, it's been more about realizing the quantity I have been taking in over the years. I have come to the conclusion that my eyeballing method was way off

. I too worked w/a dietician when I did mine. Even a refresher course in what a proper serving size is can be a help. Sure it sounds like more work when it comes to meal prep, but if it can bring yourself back to enjoying food in moderation then feeling it's out to get you, it might be something to try. Also, if it will help your journey out - have your wife come to the appointment if she's the main meal prep person. It can be a lot easier if your all on the same page and direction and your own personal cheerleader to boot.
One other thought, do you just have three meals a day, or do you incorporate snacks in it as well?
My frustration is that things that worked in the past don't work this time around. Not sure if it's my age or that the body has changed some. But I am trying to do better in my feelings towards all of this and find something that does work. Just know, you can do this!