Great stuff!

Hmmm its a bit concerning that you have no one looking over your shoulder to keep and eye on you. And if your anything like me who likes to push the limits even to my own detriment sometimes - it can be a tough call to judge when to pull out. So... I'm hoping you can possibly and tactfully recruit a loved one to keep an eye one you physically. And Godwilling you have many virtual people here who can steer you right. You know what works for some may not always work for others and we aren't experts - all just experimenting with our own health I guess.. But please be safe.

Yup! in my dry fast I didn't get hot - I was extremely cold. Everyone is different, we all live in different climates and originate from different climates so our tolerances will all differ. I think you should be fine, your body knows what it is doing.
The best way to check is by picking up some keto-strips from the pharmacy to use mid-steam in a urination. You should be showing nice high amounts of ketosis which is usually dark purple, and the lightest blue on the glucose indicator. The strips come in like a bottle of 50, and they are about $5-$10AUD...

Yes I had significant protein deficiency on my long fasts too. This can cause all sorts of issues. But My advice having gone through hell with it before is to just slow graduate onto the best quality plant proteins you can. For myself this was working up to being able to have organic hemp protein, lots of steamed broccoli, chia seeds in smoothies, kale/spinach in green drinks.. you can also do lentil soups, which are like 28% protein. I personally do eat animal product in moderation - this may be something you are willing to do... But Hemp protein powder is very potent.

I have also had an issue with nuts. I had cortisol issues in the past - and at times when I needed a handful of protein and fat - nut where it - and still very much are today. After I fasted my body was seriously craving nuts too. I think it is because they are so nutrient dense, but if you have a strategy in place you can incorporate nuts, without going over the top. The amount of nuts one should be having is about a good handful each day. More can actually give you intolerances, and if they aren't chewed well enough they cause your digestive tract big issues. I know if I have a meal plan in place for the day I am more likely to no over do the nuts, but if I have no idea then i snack around - until I've consumed enough snacks that would make up a few good sized meals. Thats not a very good approach. So what I try and do is plan my eating. If I don't plan and leave caution to the wind, the void of not knowing can be filled with all sorts of things that may not be compatible with my goals.

In terms of addiction... I can resonate... I like crunchy things. Sometimes a meal just isn't a meal if it don't have a good crunch. Food is about texture more than taste more that we care to think. you may be able to substitute crunches... e.g., instead of cashews, Celery in tahini spread? Figure out why you are so onto cashews. Is it cashews or nuts in general? Allow yourself nuts, just give yourself a handful a day allowance. Buy a bag for the week and split it into your daily amounts... then you are in control of where your nuts go... on your fruit salad? roasted? raw/soaked/activated? But try to no go over your nut budget. Also try to lean towards, Brazil nuts, Almond and Walnuts as these are much more beneficial. I think craving nuts means the body is after satiety, protein, and fat... but try to meet these needs through varied diet, particularly veggies.

Right now Im about to have marshmallow tea, and then steam a huge bowl of broccoli, with a very decent amount of butter, and some himalayan salt.... and maybe a small cup of bone broth. Hopefully that will do me for the day. Im sure it (my broccoli) would be extra lovely with sauté walnuts or almonds on top too? these are just ideas... and personalise them and make them your own.

Belle Im always having to re-adjust my regimes and go back to the drawing board and fix it all up... I fall off the wagon constantly (with my girls eating other types of food, and my hub into different health foods it can be such a mix!)
So its just about getting the basics right...

I can relate to your situation very well... and I wish I had better answers for you... Im sorry Im still figuring it all out myself... let me know if you have any info too!