Oh man, a 30 day meal plan calendar is going to help you a ton. Before you start keto I'd definitely mention it to your doctor, just in case something in your medical history suggests it might be a bad idea. Here are 4 tips for getting started:
1, build your daily plan around your vegetables. I plan and portion out 15ish net carbs per day among broccoli, cauliflower, pico de gallo, green beans, mushrooms, etc. I've found that is about the right amount to leave headroom for hidden carbs that might pop up in other places, or the occasional light snack of your choice of nut that isn't too high carb.
2, eat a lot of fat. This is the weirdest part to get used to, because we've been conditioned to think fat is the worst, and you're like, really, I'm supposed to cook all these mushrooms in a load of cream? I'm supposed to put melted butter on everything? But, yeah. You are. In fact, it's pretty miserable if you don't, and you can end up just being miserable and malnourished if you're not getting enough calories from fat. Unprocessed pork is your friend. Cream and butter are your friends. If you can get a hold of high fat Rebel brand ice cream it is worth every penny (especially the plain chocolate flavor, throw a small amount of chopped salted peanuts in... excellent). Pepperoni that doesn't have any sugar snuck in makes for a great snack to have on hand. Which leads me to...
3, read all your ingredients labels. It's gross how much sugar gets stuffed into food without realizing it, and you have to avoid sugar (other than the small amounts of naturally occurring sugar in fruits and vegetables) at all costs. This is the easiest way to have keto go sideways on you, by missing that something you've been eating has hidden sugar in it. Some Italian sausage I bought a few weeks ago almost got me this way. I wasn't careful enough when I bought it, thought, eh, it's hot sausage, and right before I was going to cook it I looked at the label and realized it was loaded with corn syrup. Artificial sugars and sugar free items are no guarantee either, a lot of them will give you the ol' glucose spike that kicks the body out of ketosis.
4, wrap your head around the idea that this is a whole new way of eating. The people I've seen have a terrible experience have tried to eat the keto versions of their favorite foods. The reality is... the keto versions of your favorite foods in most cases are going to be extremely unsatisfying. Keto bread... sucks. Cauliflower rice for regular rice... tolerable, but not the same. The multiple variety of fake noodles that are keto friendly... culinary abominations. And a lot of the "easy" keto friendly labeled foods you find at the grocery store might not actually be legit keto once you look at the ingredients. As you know and figured out doing other things, figure out some great go-to meals that you'll enjoy and stick with that. I basically rotate 8-10 things when I'm on keto, and when in doubt bake wings with Frank's red hot and skillet up fresh green beans. My recommendation to people that do it the first time is to do it as clean and strict as they can handle, then incorporate some of the products that make it easier.
That's a good start. I can give you other ideas as you get into it. There are a bunch of great recipe websites like ruled.me (pinterest is great for keto too) and other resources that help. I've been meaning to write up a keto restaurant guide of my own, like the tip I mentioned in this thread about asking for the tub at 5 Guys.
