If loosing weight was as easy as gaining weight, I'd already be skinny.
The body is like a bank account. You take some calories out every day in the process of living. You add calories every day when you eat or drink.
Look up the foods that you like that have very few calories. If there is something you like that has more or higher fiber, eat more of that. Stop eating or drinking high calorie drinks like soda. IF you must drink soda, make it the diet soda. Drink lots of water. My first success in loosing weight was because I quit eating high starch foods and high starch/high sugar foods like ice cream, cake, pie, bread, buscuits, and cookies. I lost 30 lbs over three months. I gave up bacon and hot dogs because its so high in calories and salt.
I had a garden and grew tomatoes. I had some small tomatoes (Juliet hybrid) that had wonderful tomato flavor. I ate them as snacks instead of chips and dip. It took an adjustment and some battles of will power, but I took in three or 4 knotches on my belt and all my pants fit very loose.
The last diet I was on that gave me big losses was the "6 week body make over". They guarentee they will buy back the program and shipping if you don't loose two pants sizes in 6 weeks. I lost two pants sizes in two weeks and kept it off as long as I watched my diet.
Good luck to you and yours.