the guy who wrote "EatStopEat" a book all about IF, also wrote a book "how much protein" and CW tells us to eat 1 gram protein to 1 lbs lean mass but that is not true. Your small, you could easily make due with half that or be around 70 grams-ish. Eating more protein does not equal more muscle, the only thing that will really get you more muscle is weight training. Eat what feels right and don't stress that your not getting enough, some days you'll eat more than you need, other days you won't but it'll usually all work out.