Помогите написать письмо другу на английском

Ваня. Но уже есть спасибо

Dear (имя друга)hi. how are you doing? I'm good. what is interesting at sea? how many at you now time? what's the weather like? what is the capital in Italy? you're in Italy? I miss you, and you? come soon please. I invite you to my birthday it will be on 15 July at 17:30. I'm waiting for you. when's your birthday? (пишешь свое имя)