We don't need to forget what matters is out survival and excellence.Don't let yourself go, this is a simple guide to check that extra weight.

You want to lose fat without changing much your lifestyle - having to remember a myriad of facts.This post is for you.

The Golden Rule: Eat Less Than You Burn
First you need to calculate the calories you need for a day to maintain your weight, choose an online calculator since its easier/faster/free.

You need to eat less calories than you burn, 250-500 calories will improve your chances to stay on schedule.Next, use an online body-fat calculator,it measures around your body to determine your bodyfat percentage.
Those calculators estimate how much calories you need and how much fat you carry but they are easy to use/ free so they are better than any alternative when you start.
So let's say you have 30% fat that means if you were 270 pounds you'd have 81 pounds of fat.
Then 1% of fat are 2.7 pounds and the calories you need to burn for that 1% are 3500*2.7 (estimation).

So far what you have to do is eat 300 calories less each day (some times more or less depending on your mood), until you reach a negative sum of 3500*2.7 (that's 32 days for the example).

The Plateau

After a while it's going to be harder to lose more.What i personally do instead of putting myself to stricter diets that are hard to follow is: Eat a high carb high calorie each week meal (500-800 calories more than maintainance calories).

It's quite important to eat a bit less but also foods that you love, changing a habit takes time. It's better to eat some oreo cookies now while still managing that you are eating -300 cals each day, however after a while decrease the amount of unhealthy calories.
Not only eating those cookies will improve your chances to stay on track but also give you the power to restrict them in the future.

Count your calories by scheduling a weekly list of what your going to eat each day (maybe let some room for dessert).

How you know you are on schedule? The Silver Rule: Change Your Enviroment
In order to be sure that you follow your new simple everyday almost 300 calorie minus diet you have to change a little bit everyday your everyday lifestyle. Don't buy biscuits in bulk, don't spend time close to the fridge and avoid the soyboy cafeteria.

Helpful habit:Full day fasting have improved my well being so i urge you to incorporate it in a week or two span.
Paper: https://www.cell.com/cell-metabolism/pdfExtended/S1550-4131(19)30429-230429-2)
Each week for 24 hours you eat nothing, it's up to you (as i do) to use the day before the big carb meal.

QUESTION: WHAT ABOUT EXERCISE?

Exercise is important for a strong/healthy body, what matters in a fat loss regime is what you put in that mouth and how much. I recommend bodyweight exercises, creating that habit slowly day by day. It's not going to help you much with weight/fat loss but will improve your body composition and function in the long run.