Here, I can give some general advice to overcome your problem.
Reduce the food stuff, which makes quickly acidify your stomach. All kind of sugar content, even fruit juice would do the same.
Slowly and steadily digestible food is good won’t make such health issues.
Green vegetables (eatable) is good to reduce the acidity as well as decrease the craving. Because the stomach acid is the main cause of craving.
As an answer to your question, yes you can reduce your waistline in a year.
To begin with, avoid sugar, salt and processed spices from your food.
And then limit your carbohydrate intake. Comparing your body weight, you could have 100grams of carb per day.
Once you get stabilized with diet you can start workouts and even before that itself you’ll be noticing the results.
While choosing workout, never stick with cardios, forget about slow runs, walking and crap.
Hit a gym start high intensity weight training or core workout. Sweat like a puddle. Trust me; it takes 4weeks to notice yourself and 8weeks for your family and 12weeks for rest.