Being blunt - Eat less, do cardio to burn.
If you feel hungry, eat protein / protein shake once a day.
Discipline discipline discipline - you will need to fight hunger and do exercise.
Lifestyle changes to keep it off.
Cut out sugar if you can. I'm shifting a few pounds and toning a bit, I've a tried and tested exercise pattern I use but it's HIIT based so only takes 15 mins a day.
Food:
be in a consistent small calorie deficit.
But eat food that gives you enough energy to train hard in bursts.
Really important to eat fresh, clean foods that are as unprocessed as possible. Bodies are made in the kitchen, sculpted in the gym/exercise.
Eat at least 1g of protein per pound of bodyweight, daily. If your protein intake is too low on a restricted-calorie diet, you’ll lose a lot of muscle in addition to any fat
protein: chicken and turkey, eggs, lean red meat/steak, fish, seafood, canned tuna, tofu, seitan, peanut butter, edamame beans, Greek yoghurt, skyr, protein drink/bar
healthy carbohydrates: oats, rice, buckwheat, couscous, potatoes (+Jackets), beans, lentils, root vegetables, whole grain bread, whole grain cereal
fat sources: oily fish, olive oil, nuts, seeds, peanut butter
Mix a bit of protein and carb each meal, no shit. One cheat meal a week if you must do a take away but im afraid it takes discipline to really see fast results.
Good luck.