Написать письмо на о экзаменах: какие предметы вы выбрали, какие будите сдавать, как вы готовитесь, не более 80 слов

I'm going to pass math, physics and Russian language. Language is obligated but math and physics are necessary for entering to university, which I choosed. I'm studying really hard every day to getting good results. I'm going become an engineer like my father. I like science a lot, but also I had thought about history exam. I hope, I'll pass my exams very well.