Hi @monte1, welcome to the forum! Many thoughts on reading your posting, some have been spoken to in the replies you have gotten so far.
When I started eating very, very low carb 6 months ago the 1st major issue I encountered was having everything I thought I knew about nutrition and losing weight turned on it’s head. The more I read and researched the more I discovered how wrong most of the advice and “knowledge” is. So, as much as is possible, try to put everything you have heard and think you know aside. It’s quite likely it will get in your way.
How are you measuring ketosis? The degree to which you are in ketosis isn’t important, when it comes to weight loss. It is important when using diet to address serious medical issues such as uncontrolled epilepsy. I measured my blood ketones a lot when I started. It turned out to be a terrible waste of money and stress creator. I have always had very low readings yet I have lost weight steadily and the pain and swelling from my osteoarthritis is hugely improved, to the point I no longer need a knee replacement done on my right knee.
Some of the initial weight loss is water weight but please don’t view 8 pounds as insignificant. And don’t see keto as a quick fix. People with huge amounts of weight to lose can drop weight quite quickly initially, especially youngish men. You are female (I’m guessing?) 60+ and have much much less weight to lose. Totally different body. Keto is more a healing way to eat, with weight loss as a much welcomed “side effect” for many. Try not to focus on the scale. Instead take your neck, upper arm, waist and hip measurements every month or so and use how your clothes are fitting as a guide. It’s fat loss you are after, as mentioned here, not a number on the scale. I’m not saying the number on the scale won’t go down, just saying don’t let that be your main measure of progress.
I looked up mtx. Your RA must be very bad for you to be being giving Methotrexate. It was a damn scary read!
Methotrexate Injection: Package Insert / Prescribing Information - Drugs.com
There’s one of the things the medical profession is wrong about. Fat, especially saturated fat, has been demonized. How it came to be demonized and why that got so widely accepted is a sobering story. You will find many good documentaries on youtube talking about it. Here’s a decent one to watch.
(3) The Low Fat Diet Is Genocide | Fat Fiction | Full Documentary | Free | Documentary Central - YouTube
10 grams on a standard keto way of eating is irrelevant, as mentioned above.
Do a search on this site, and on google, about eating keto and autoimmune diseases such as RA. There is a lot of information about how and why it can help. My arthritis is osteo, so not an autoimmune condition, tho I do have a few less serious autoimmune conditions that have definitely improved.
Why has the professional you see set your protein so low? What is your height? Don’t fear protein, it is essential, especially for someone 60+.
The best general advice I can give you is keep your carbs to 20g or less, eat enough protein to truly nourish your body, don’t fear fat as it is now your energy source, eat as cleanly as possible (foods with one ingredient) so avoid as much processed food as you possibly can, don’t use any seed oils (extremely inflammatory, as well as other things), start reading ingredient lists and nutrition lists on food you buy and don’t get tricked by labels such as 'keto friendly", and make above ground veg, especially green leafy and cruciferous, your main source of carbs.
All the best and keep us posted!