Weight plateauing is normal, rare is the person whose weight loss goes in a straight line down. And you are not in "starvation mode" unless you looked like the guy in the photo of this good article explaining it. https://intensivedietarymanagement....g-myths-part-5/

The Atkins instructions are simple, Eat when you are hungry, stop when you are full. You don't have to eat three meals a day, nor even count calories.
Congratulations on losing inches...the notches on a belt are the best indicator of health improvements for men, not the scale. Goal is a waist half height.