Newly fasting getting into ketosis, need help


#1

i am 20, male and have a few questions about getting in ketosis. I’m a skinny guy who just completed a mini 8 week bulk (don’t know if I should call a bulk)
starting weight at bulk 132lbs and ending weight is 138lbs. definitely gained muscle along with little fat. i made a mistake upping my calories a lot and consuming a lot of mass gainers. i bulk at 3300 calories.

now here’s the questions.

I’m fasting since yesterday on water only. I was advised this is most effective way getting your body in ketosis? true or false?

when body is in ketosis, does it lose muscle along with fat?

ketosis diet - here the foods that I have
Egg,natural peanut butter, cheese slices, olive oil, spinach, nuts, meats. is this enough?

my main concern is that I’ve gained some little fat on my arms and some in my quads. everything else is lean. i have a six pack. thanks