@MRALPPK I’m afraid you may be veering off these train tracks into the wrong direction.
If you are eating restricted carbs (roughly 20g/day or less) you ARE in ketosis. Otherwise, you’d be curled up in a ball and wouldn’t be typing on a keyboard
Testing for ketones may be interesting (I do it from time to time) but it’s not really telling you anything you shouldn’t already know.
Meaningfully restricted carbs? Yup, you’re in ketosis.
With that said, assuming you are eating a prudently appropriate amount of protein (per your lean body weight), then the rest of your required energy needs must be met by eating healthy fats. There are no other options left.
So… as for losing weight … you need to set aside your expectations (whatever they might be) since you cannot simply steer this train wherever you want. It needs to stay ON THE TRACKS of your unique metabolism, insulin resistance, and other related hormonal/biochemical processes that are - except for nutrition (and perhaps exercise, stress, sleep) - otherwise out of your control. You’re a passenger on this train.
The only thing you can most directly control is to ensure you: (1) stay off the extraneous carbs, and; (2) eat enough healthy fat to ensure your hunger is properly satisfied.
If you do this (healthy fats + eat to satiety) you will see the weight fall off as soon as your body is ready for that to happen.
If you eat LESS than this amount of required nutrition (i.e., fat) to satisfy your true hunger, your body will eventually put itself in self-preservation mode and slow everything down. It will do this because it will sense that you are slowly starving. Your train w i l l s l o w l y s t o p.
This will become entirely counterproductive to weight loss. You cannot push this train into terrain where it doesn’t belong. Once off the tracks, it will stop itself in the middle of an empty field somewhere. Getting your metabolism back will then be harder - you will then have to rebuild lost muscle tissue AND you will likely put more fat back on in the process.
So, my advice: stop worrying about what fat is or isn’t doing to your ketones. Do worry about what carbs could be doing to your ketones. Eat enough fat (preferably in 1-2 meals/day, rather than day-long grazing) and otherwise: relax on the ride and enjoy the scenery.
Best wishes!