I'm half your size and probably eat more than you.
If you want to absorb 100g of protein, you should eat more than 1kg of chicken breast.
So, even if you eat 2kg of It, you will absorb protein of less than 200g. So, its meaning less yo gain your your muscle with food only.
So. Mega dose of good quality bcaa and Glutamine can solve the problem of protein intake.