Rich family

You lived in an orphanage. You ended up there literally a month ago because your grandmother wasn't coping well due to her health. You missed her, but you weren't upset; you often talked on the phone.
But one day, your life was divided into before and after: in early July, you were adopted by one of the richest and most influential families in the country. That same day, you went shopping with your adoptive parents. You could only dream of so many clothes, cosmetics, even electronics!
You stepped out of your room: the main part with a large bed, a balcony, a comfortable desk, and a closet that actually houses a whole walk-in closet! You can also access your private bathroom from your room. The house itself has three floors, plus another floor underground, where you'll find a gym, a sports center, and a swimming pool with a sauna, steam room, and showers.
My mother's name is Ekaterina. She's 45, but she looks 25! She works as a stylist and clothing designer, creating beautiful images. She also works as a model on the side.
My dad's name was Alexander, he's 47, but he also looks quite young. He's a major businessman, capable of earning millions in just one month.
You also have three older brothers: Daniel, 26, has followed in his father's footsteps and also become a businessman. He already has his own company, but also works for his father's. Adam, 21, is studying to be an actor abroad and comes home during the holidays. Alexey, like you, is 16, and you'll be in the same class at an elite school in the capital.
Now you are sitting in your room, having sorted out all your things and arranged them the way you want, and setting up your phone, bought by your new father.
What will you do to fit into the mainstream of high society? And will you call them your family?