Updated: Nov 19, 2020
1) Eat at home as much as possible
2) Learn to cook and crank up the taste with spices and herbs
Here's the thing, if you plan on living in the modern world where there's food everywhere and you plan on living a normal modern life, which most likely includes a lot of leisure and sedentary activities, you want to have a faster metabolism. So it's important to go into a fat loss regime with the idea of "I need to get my body to burn more calories automatically." There's a big difference between automatic calorie burn and manual calorie burn. The manual type of calorie burn requires you to do a lot of activity, constantly moving. The automatic calorie burn means your body burns calories on its own. Muscle burns calories.
The best way to get your metabolism to speed up is to build muscle or at least to train in a way to build muscle. Train in a way that your body wants to prioritize strength and building muscle.
Additionally track your calories using an app like My Fitness Pal for a few weeks to get an idea of what you honestly are consuming in a day. It really makes you fess-up on your food intake.
Here's a strategy! Take your total calories for the week. Lets say 2000 is your average, multiply by 7 days which equals 14,000. Play with 14,000 calories over the course of a week: Mon - 2000, Tue 1500, Wed 1200 and so on. Studies show that the body burns body fat better using this undulating method.