Проверьте, пожалуйста, грамотность составленных предложений (вырваны из письма)
I am really happy that you are entered to the university. You asked me about my plans after school. So. I'm going to join in economic university in Moscow. By the way, we will celebrate graduation party(выпускной) in a cafe after getting the certificate. We wiil sing and dance a waltz. In general, every girl wear two dresses. On the official part girls wear long dress and when they go for a walk, they have a short dress. So I bought two dresses and I am going to be with high-heeled shoes.

that you have entered the universityI want to apply for the economic university in Moscowwe will selebrate promafter getting the diplomaand dance waltzall in all, every girl will wear 2 dressesgirls will wear long dresses and when we will go, we will wear short dressesi am going to be on high heels