Diet pills can be dangerous and it's not a permanent fix for your weight issue. You need to adjust your diet accordingly, and also exercise more than 2 hours a week. That's a good start though if you weren't doing anything before, you just need to keep increasing. I did not read through all of your responses, but I did see someone mention getting in at least 30 minutes a day, and they are right! You need to be doing cardio as well as strength training. Increasing your muscle mass will increase the amount of calories your body burns. You also want to ensure you get enough protein intake in addition to the strength training to make sure the weight you lose is fat and NOT muscle. That is the issue with a lot of the diets out there, is that you end up losing a lot of muscle weight and that is horrible.
I recommend you go onto a calorie logging website such as myfitnesspal.com and log your food for at least a week. Make your adjustments from there. As someone else also said, most people eat more than they realize and more than the body needs. It can be really eye opening when you start tracking your food. People don't usually realize how much their snacking adds up throughout the day! Most Americans eat way way way more carbs than necessary, and not enough protein. Some of the food logging websites dont give accurate protein requirement info, but you should be getting at least 0.5 grams of protein per kg of ideal body weight per day.
Remember, losing weight and getting back in shape takes time. You didn't gain the weight overnight. Most people who diet/exercise on their own can expect to lose about 1-2 lbs a week or maybe less.
Also, you have to learn how to read labels and know your serving sizes. A bowl of cereal or a bowl of pasta is probably 2-3 servings, not 1, for example. Fruits and veggies should become your best friend when it comes to snacking. Buy fresh or frozen produce, and prepare and pre-package it so it's ready for you when you need a snack. If it's already prepared then you are more likely to eat it. Good examples are oranges, berries, bananas, apple slices, celery sticks, cucumber slices, grape/cherry tomatoes, carrot sticks, fresh green beans, bell pepper strips, etc. Cut down your dressings and dip veggies in hummus instead. Pair these fruits or veggies with some protein such as peanut butter, Greek yogurt, nonfat cottage cheese, etc in order to keep you full longer. Start switching your white bread/grain products to whole grain products if applicable. If you drink soda, start cutting that down, even diet soda. I know people who have lost 5-10 lbs just by cutting their soda if they were drinking multiple servings daily. These changes will make a difference for you. I know they sound daunting, but break them down into baby steps until you're eating much healthier and exercise becomes a lifestyle habit.
Good luck to you! I wish you all the best. I have a lot more info as well, feel free to message me if you need clarification/have specific questions/etc.