Try not to get too dogmatic with your diet. Like snowflakes, we are all similar but unique. Your best bet is to journal your way and listen to what your body tells you.
20 grams of carbs is just a starting point. Protein in grams to lean mass weight is just a starting weight.
Start there, then experiment. Get interested. Be a case study of 1. Learn to ask a lot of questions. Take all the answers with a grain of salt. Pink Himalayan Salt. Take everything with salt. You need the electrolytes.
And... of course, above all else, don’t forget to…
Keep Calm and Keto On.