Ive been on lazy Keto for about a year and a half...I kinda need to add some carbs back in or I start to feel a bit weak if I am working all day, but overall I am pretty fat adapted now and I can easily go 24 hours without eating and be fine, in fact usually feel really good after fasting 12plus hours.
As others said, you really need to try and eliminate sugar, and cutting out bread, pasta, wheat cleared my skin up. I am stuck around 170-175lbs and cant seem to get the last 10lbs or so off but it works, just works differently for people, some can eat more carbs and stay in ketosis.
It's not a diet but an overall lifestyle change, cutting out sugar, intermittent fasting, eating much cleaner all around and ofcourse exercise never hurts.