You've now done that first step, the realisation, the wanting to do it.
The secret is not being hungry.
Your body may have poor leptin regulation. Meaning you don't signal satiation when you are full.
All you do is help this by lowering your carbs and increasing protein and moderate fat.
You then break that sugar/ carbs in = high blood sugar = big insulin response = low blood sugar = feeling hungry again very quickly.
Filling up on low carbs and higher protein really works.
I lost 5 stone very easily, I'd say almost without effort. It's easy to eat this way and add a portion of carbs to the plates of children.
Try reading Michael Mosleys books on blood sugar. He's got the right idea. Even if you don't follow it exactly the emphasis is in the right direction.
I don't limit calories ever. I do limit carbs. And by doing this my bio feedback loop is healthy so I'm not hungry.
I fought to loose weight for 20 years until I discovered this. I did weight watchers and slimming world, shakes and cabbage diets!
And it's so easy now. I'm now almost to a healthy BMI after decades of despair. No diet plan or weigh-in in sight!
I don't eat bread, sugar, anything containing flour, all rice, potatoes, or fruit, although I do eat berries.