To me it sounds like you are getting more than enough protein, I would not want to add any more extra protein than you already have.
In the vegetarian section I would have to say people's worst fear is dieing from lack of protein. The truth is the average American eats 2 to 5 times more protein than needed, this excess protein is a major cause of the unnatural diseases and health problems they suffer. But first of all I will explain what excess protein does to your body... Unlike fat the extra protein you consume can't be stored on your body, when consumed in excess it becomes toxic and acidic to your body, it is very hard on your liver and kidneys, but the human body is wise enough to leach a little calcium from your bones to neutralize the acid, then your body must get rid of all this protein and calcium, so it will exit through urine. If this happens enough you just might end up with osteoporosis, liver failure, kidney failure, kidney stones (most kidneys stones are made with 95% calcium and that's from your bones) The countries who consume the most animal products (meat, milk, eggs are protein rich) also suffer from the most osteoporosis. In places like China where animal products are not consumed as much osteoporosis is far less common. I suggest you Vegan diet foods through this you get more results about What is a vegan diet .