以I want to be a .为题目的英语作文

Different people want to do different job.For me I want to be a doctor.Because doctor is a nice job.Of course ,a doctor is always busy.A doctor often works for long hours and sometimes he has to work at night.But Ithink doctors are great,they can help people become healthy Sometimes they can save other's lives.And findly,doctor get good pay.Do you agree with me?