Welcome and congratulations on your six weeks.
My advice is to keep your plan as simple as possible. Keep the carbs as low under 20g/day as you can and eat as cleanly as possible. This isn’t difficult for me as I don’t like to fuss in the kitchen or prepare elaborate recipes. Eat as cleanly as you can - foods in their natural state - beef, pork, chicken, sausage, bacon, cheese, heavy cream, butter, olive oil, some mayo, low carb veggies (broccoli, cabbage, spinach, greens, asparagus, cauliflower, brussels sprouts, etc.). Our dinners are mainly a pan seared or grilled piece of meat, cole slaw, and/or a steamed vegetable(s) in bacon grease or butter. Never tire of it.
I know artificial sweeteners are discouraged, but I don’t sweat having small amounts of them. Check how many carbs are in your tonic water. If it’s low, I’d be okay with it in moderation. I use a little artificial sweetener in my coffee every day and especially when I make keto ice cream. I don’t worry about it a small amount.
Carrots are high in carbs - any vegetable that is “sweet” or starchy (carrots, tomatoes, potatoes, onions, etc.) are higher in carbs. When just starting out, I’d track your carbs for several weeks to make sure you are staying under 20g/day and also to learn the approximate carb values in the vegetables you most commonly eat. Dietdoctor.com is a great website for a visual of vegetables and their carb counts, plus a ton of other useful information presented in layman’s terms.
Eat appropriately, keep the carbs as low as you can, get enough fat and don’t worry about how quickly you are losing. It will come off. Know that your body is repairing and detoxifying itself from years of eating carbs and sugar.
Best.
