I need guidance how to start weight loss program

Go here: https://www.myfitnesspal.com/account/change-goals-guided or More > Goals in app.

1. Put in your stats.
2. normal daily activities refers to your job.
3. Ignore How many times a week do you plan on exercising? - that does not get included in the equation. Log your exercise separately.
4. Select a rate of loss in line with the chart:

The resulting calories is your daily calorie budget. It's normal to go a little over or under, but since weight loss is already included in these calories, you don't want to intentionally go hundreds of calories under.

See also: https://community.myfitnesspal.com/en/discussion/10636388/free-customized-personal-weight-loss-eating-plan-not-spam-or-mlm/p1

BigMo2017 wrote: »

Eat fewer calories than your BMR (basal metabolic rate), there are online calculators. Go outside for a 5km (3 miles) walk every day.

I think you might mean eat under your TDEE (total daily energy expenditure)

When I was heavier I found it helpful to tackle one health or fitness goal every couple of weeks. One week I decided I would stop drinking juice and full sugar sodas and replace those with water or sparkling water. Another week I decided to replace the highly refined grain crackers I was eating with whole grain crackers. Another week I decided to add two servings of vegetables each day. Another week I began walking three times a week.

The small changes over time helped me to gradually change my bad habits slowly rather than trying to tackle everything at once. It helped me to be more successful. Eventually I lowered my total calories per day and began running. I lost a total of 55 pounds over 18 monthfrom a size 16 to a size 4.