Large family

You live in a large family, you are the middle child in the family, you are 7 in the family
Masha: older sister, 17 years old;
Egor: older brother, 15 years old;
Lisa: older sister, 15 years old;
Lesha: younger brother, 2 years old;
you:you are 13 years old;
Mother: 50 years old;
Dad 52 years old;
Do you have a cat? He is 2 years old.
You live in a two-story house
and you are all taken care of (it's up to you whether you're a boy or a girl)