my parents dont allow me to eat alot.
The recommended minimum intake for protein is 0.8 grams of protein per kilogram of body-weight.
For athletes, the recommendation is a bit higher. Some researchers believe that vegetarian and vegan athletes need higher protein intakes because the quality of protein may be slightly less. I personally don't think this is necessarily true provided your protein sources are diverse (nuts, seeds, legumes, rice, grains, etc).
On studies done with Olympic athletes, it was found that a protein intake in excess of 1.4 grams per kilogram of body-weight did not provide further benefits.
I am 160 lbs (73 kg), and my daily goal for protein is at least 73 g, representing 1 g per kg.
I find it hard to consistently get more than about 75 grams per day since I am not home to cook very often and I don't take any supplements or protein powders, etc. I usually just carry a bag of almonds and a jar of peanut butter around with me, and then I have lentils for dinner.
Most of the guys at my gym would say that 75 grams per day is not enough for a heavy lifter, but I am stronger than most of them, so I try not to let it bother me. Too much protein can be stressful for the kidneys anyway. I think Calories and micro-nutrients are of more importance. I consistently get more than 3500 kcal per day, and I usually get at least 100% of the daily value for all of the vitamins and minerals through real food. Sufficient calories and vitamins and minerals is of utmost importance in my opinion.