I like hitting the ketosis for three or four days, then getting back to the starchy toward the end of the week.
I almost always only have one meal a day, to accomplish something like a 20 hour fast daily. About 2500 to 3000 calories comprised of a pound of meat, scoops of fat, and a little mountain of leafy or cruciferous veggies, mushrooms, eggs, berries, bone broth, or more. Once in awhile I take leftovers to work to finish off, or some avocado toward the end of the week when they're ripe.
I walk soooooooo much at work in the hospital. It takes very little effort to never sit down. For ten hours a night. This might be a SERIOUS advantage.
Expect to lose weight slowly if you're not a massive human whale. I only had 20 pounds left to drop by the time I found Primal, and they came off in little fits and spurts over the last year.
Lift heavy things or do body weight exercises to increase your muscle density/mass, or at least strength! It will help your body burn more fuel throughout the day (muscle eats more food) and it's just plain fun to scare weaklings by climbing up a wall on a whim.
I should add that I almost always have a bite of raw, local honey before bed in the morning. It might be about a teaspoon, it's for my seasonal allergies, and according to what I've read, that's only enough to replenish some glycogen and not enough to break ketosis.
Dietary plateau breakers that helped me:
Dropped all dairy.
Reduced nuts to about one a week.
Added more protein and reduced fat slightly.
Steak, eggs, potatoes - fruits, nuts, berries and forage. Coconut milk and potent herbs and spices. Tea instead of coffee now and teeny amounts of kelp daily. Let's see how this does! Not really had dairy much, and gut seems better for it.