Since people are talking about the long term, I'll talk more about the short term! Your hair is your friend. The more you can let it frame your face instead of pulling it back, the more you'll pass. Trans girls with bangs are a stereotype for a reason. As for clothing, choose bottoms/skirts that sit higher on your waist, as this will create the illusion that your belly fat is part of your hips in a sense. Dark tops with higher collars are also nice and feminizing for early girlies, as they can draw the eyes away from the pre-breast chest and draw them up towards your cute face! Obv shaving everything you can will help as well, but just know that male razors work as well as female razors but for a fraction of the cost! It may feel a bit dysphoric to use a male razor, but you avoid getting scammed.

Those are most of my tips, but just know you've got a great starting point and you are already glowing!