There really is no such thing as "the normal person". That's a statistical construct, not a real person. The caloric level on which you can lose is based on YOU. Several posters have said "depending on your age, height, current weight and activity level". You haven't posted any numbers (and that's ok, some people are shy about posting their statistics) so we are guessing. I don't know many women who can eat 2000 calories a day without a lot of exercise without gaining weight.
Figuring out what you can eat is really a trial and error approach. There are calorie calculators, but none are 100% foolproof because every body is different. Your metabolism may be a little higher or lower than "average", your perception of moderate exercise may be higher or lower than "average"....
You look a lot younger than I am, but here's what I've found are my guidelines (I'm 53 and just a hair under 5'3"):
I can lose weight on 1400 "clean" calories with a lot of exercise. I do about 45 minutes of moderate to hard cardio every morning, and 45 minutes of weight training 4-5 days a week (and yes, I work full time). "Clean" calories for me are no processed food, no added sugars, no white starchy carbs, lots of lean protein, lots of fresh vegetables, a little fruit, healthy fats in the form of olive oil and natural peanut butter. I eat 5 meals per day and always have protein/fat/carbs at each meal. Because I feel better with higher protein and lower carbs, my ratios are about 45% protein, 25% fat and 30% carbs. I'm not a vegetarian, but I do eat a lot of egg whites in various forms and lots of cottage cheese.
If I lower my exercise or raise my calories above 1500, I gain.
Since you are heavier and younger, why not pick 1400 as a starting point and see how you do? I bet you'll lose, especially if you add some exercise. And if you carefully plan whole food meals with protein, carbs and fats, you'll probably feel like you are eating non-stop at first
Welcome to 3FC!
Mel