Not building muscle that fast. How to have more protein (if I even need to?)

Hi! I’m 155 cm and 55kg, vegan (been vegan for 6mo, vegetarian since I was 10). Young adult, Taiwanese.

Hii! Ok so I started lifting about 6 months ago (same time I went vegan). I went from being able to lift like 3kg dumbbells per exercise to now I can do 12kg which I’m super proud of!!

But I feel like my appearance is exactly the same, and I’m not getting strong as fast as I want to. I want to be really big and bulky, but I don’t want to take testosterone or steroids or anything like that, or drink protein shakes.

Is it true that I need more protein? I eat a typical Asian diet with mostly tofu and green vegetables. Maybe like 1800 callries a day but I eat intuitively. I just eat whatever I crave, I cook for myself and my husband every day at home.

Any other tips? I’m new to lifting weights but I have done Kung Fu for many years and am a part time Kung Fu instructor so my cardio, flexibility, and stamina and all that is great.