As already mentioned, you can’t choose where the fat comes off, your body adds/removes fat from certain areas at different body fat percentages.
Work out your basal metabolic rate and total daily energy expenditure here[/url], then subtract 20% from your TDEE giving you roughly the amount of calories you should eat a day.
Download a calorie counting app such as myfitnesspal, add the foods as you go and don’t go over your calories.
By the end of the week you should have roughly a 3000 calorie deficit at -20%, 3000 calories equates to roughly 1 lbs of fat.
You need to eat low calorie nutritionally dense foods and your carbs should come from fruit (in moderation), vegetables, and brown grains.
Cut out as much processed food as possible, also no white bread, rice or pasta etc.
You should also drink plenty of water.
You can have up to 3 planned cheat meals a week, no scoffing your face just because you feel like it.
20 minutes a day of cardio will help, even if its just walking the dog etc, it doesn’t have to be intense.
For accelerated fat loss (and not so you don’t look like a twig when you lose all that fat) add a resistance training routine.