If it is an annual assessment, credits are only valid in that year. There are generally various training courses or lectures on how to apply for continuing education. If it is free, the maximum is 0.5 credits. If you need to pay to attend provincial and national continuing education classes, your credits will be higher. You can pay attention to the website of the provincial medical association, and there will be related continuing education courses.
Generally, only the attending doctor needs it, depending on the regulations of the hospital. You don't need a junior resident.