Apple cider vinegar is a good suggestion, I recommend Bragg's brand with "The Mother". If you're not allergic to shellfish, you can use the supplement Chitosan. It's a fiber extract that absorbs fats from food eaten, and eliminates them for a fast transit through the digestive system, so less fat and cholesterol is absorbed in the body. I won't ever use any diet pills at all, but I do have an old bottle of Chitosan (Max brand) on my shelf from a long time ago. You take two capsules with a full glass of water 1/2 hour before eating.
Another thing that's a must is to drink plenty of filtered water daily, an 8 ounce of warm water with lemon juice in the morning will not only help clean/detox your organs like your liver and kidneys, but it will naturally boost your metabolism for the day. Also drinking a glass of water before eating will help fill you up. Portion control is a must, we often eat much more than we should. You don't have to weigh things, just eyeball the amounts, a piece of chicken breast for example shouldn't be any larger than the palm of your hand...max.
Eating five small healthy meals throughout the day, is much better than eating one or two big ones. It stops you from feeling hungry, and doesn't put your body into "starvation mode". Have stuff like baby carrots, celery, non-fat plain greek yogurt, unsweetened apple sauce, etc. around to eat when you have the urge to snack. Try to eliminate any cheeses, breads, potatoes, butter, cream, etc. from your diet. Don't even have it in the fridge, that's the best way. No eating after 7PM is a good rule to go by for losing weight.
You can take one or two days of the week and fast, or semi-fast. You can maybe have fresh veggie or fruit juice, and no other solid foods for that day. Also, isometric 'exercises' have some value in strengthening/building muscles, which in turn, help to raise the metabolism and lose weight. Take one arm for example, and just tense/tighten it, without moving it around. Hold for ten to twenty seconds and relax. That can be done with stomach, legs, feet, etc.
Good luck, so glad you're wanting to make some positive changes in your health. As you begin to lose the weight, you will feel so much better not only physically, but mentally and emotionally too.