Start by replacing any sugary drinks with water, and get active! You can do it! Look up how many calories you need to maintain your weight, and then stop eating that much. That's how you lose weight. You need to burn 3500 calories to lose just one pound. If you eat 800 calories less than you are supposed to, it'll take just over 4 days to lose one pound. That's not even counting exercise. Do the math and make a realistic plan for you :) It's a slow process, just make sure that you are eating enough and getting the proper nutrients. Good luck!
Here is what I wrote as recommendation for someone else asking similar question:
The way I won the battle was to eat in a way that does not make my blood sugar spike, and which would also keep my insulin secretion controlled as well. The eating plan us calked LCHF, which is low fat, moderate protein and high fat. And there are no gimmicks, pills, powders, bars, etc...just real food. Best part is that no calorie counting, eat until full. Also, it canceled my cravings and I no longer snack anymore. I also need to remind myself to eat, as I'm not hungry anymore (I used to be ravenous all day long).
Basic meal is VEGETABLE + PROTEIN (meat, fish, eggs) + FAT. Example is egg omelette with bacon and asparagus. Another is broccoli sautéed in butter with steak. Another is large salad with olive oil and roasted chicken thigh with skin on. Google LCHF and you will see a whole bunch of doctors and nutritionists with tons of meals and recipes (simple and inexpensive). Try it for a week and you will see the weight loss happen and food cravings reduce, as this style of eating keeps your blood sugar stable all day long and trains your body to burn fat in absence of insulin secretion.
So, LCHF works for me...I love it! I hope the best in your life whatever you chose to do. Good luck and be well.