Sorry if its wrong but i think its 'estudias'
Answer:
era feliz cuando era más joven. Siempre me contaron historias de guerra sobre mi padre cuando era más joven, escuchaba mucho country, jugaba videojuegos y siempre íbamos a la playa los cumpleaños
Explanation:
this is not even spanish xd
Hmmm.. That looks right to me. Sometimes, teachers will use calmada instead of tranquila. You can ask if that is the case here. Otherwise its possible that the teacher made a mistake. If you are still confused, I would just as whoever your teacher is. I'm sure its a mistake on their part :)
Good luck!!