To get into ketosis the most important thing is that your carbs are below 20g. Once you get into ketosis and you want to lose weight, just lower your fat intake and don’t worry about the protein amount. It will not kick you out of ketosis.
How much protein can you have? Let’s say you want to weigh 160 pounds. Eat 160 grams of protein. Be sure to put your macros into the app Cronometer to get the amounts correct. Don’t guess. Fat intake to lose weight would be around 50-80g; higher fat intake would be around 75-130g of fat. This is general, not specifically. Need individual information to be more specific. Watch the video to get the full details.