The thing with weight loss is people don't tell you there is a trick to it.
Check out something like Weight Watchers, they do it online.
Just telling someone to eat less and exercise is absolutely useless.
Your biggest issue is that you want to loose the weight too quickly.
First thing is to write down everything you eat in a day, every taste, every bite. This way you'll see if its snacking or meals that are causing the problem.
Start looking at the calories, fat and fiber in what you are eating. All three are important.
And you may have to play with it.
Try reducing your calorie intake to under 2,000 calories. The larger you are, the more calories you get to start, then you reduce it as you lose weight. An average person, should eat 2,000 calories day with reasonable amount of fat.
Weight Watchers is great because it helps you do it.
Add exercise in your life. A long walk each day, running, or an exercise video helps. Try to pick something you like even if its to go dancing three times a week.
Watch the alcohol...lots of calories in mixed drinks and even beer.