Breakfast; Cereals and Milk, or Banana and a glass of milk, or a Toast and a glass of milk.
Lunch; Fish or Meat, whatever, and Salad. Small amount of rice or pasta if you so wish it.
Afternoon; Piece of fruit.
Dinner: Fish/Meat whatever, and vegetables.
Do cardio. When i did, i played football, like a lot of football. By doing this, you'll lose weight fast, guaranteed. The trick is, with the big meals, try like half of what you would before. Friends dinners, family dinners, eat half of what the person next to you is eating.
Wanna look much better than i did when i lost weight? (Skinny, underweight, needed muscle) Do weight training occasionally. Like Twice a week if you are on a gym, if you are at home, do some push ups, some dumbbells, some squats. How to make them not boring? Put a movie on, that's what i do, my mind kinda wanders and doesn't focus on the boring.
No cakes, avoid bread when you can, no sweets, deserts whatever. Buy dark chocolate once a week or something if you really crave for some escape.
Losing weight is 80% will power to stop doing, 20% will power to start doing. You got this shit under control, you'll only get diminishing returns when you are no longer overweight.
So if you aren't losing weight, then it's time to start dropping more luggage out. Also, try not using the scale too much, i'll tell you i didn't see my weight for months. I just looked at the mirror, and i learned to see my body shape. Your belly will get smaller, your face will get skinnier, etc etc.
All i got from the scale was obsession when i got skinny, every morning, every night, every 100 grams would give me pause, higher or lower.
Just trying to share, don't take any of this the wrong way.
edit: Also, avoid using the car as much as possible as been said. Take public transportation, when you can walk, walk, when you can stand, stand. When i lost weight, i always walked to school, and always had to walk way up this street. Would always go home to eat lunch too, making me do double the trip every day.