The simplest way to guestimate your protein needs is to use your weight!
What do you weigh in pounds?
Use that number as the number of grams of protein minimum you need daily.
For example, if you weigh 127 pounds and eat just salads, how are you providing your body with its 127 grams of protein?
Your body needs protein for its energy. If your nails or your hair are not healthy and strong, look at your protein intake. Healing uses protein- broken bones, chemo....
Don't cheat yourself. Have an egg, some tuna, fish, a protein powder shake.