Help with course selections in University? (psychology major)

Okay, so I am starting the Honours BA in Psychology (4 year program) this September. Obviously, there are certain course requirements, and I have picked all of my courses. But I have one problem: I’m not sure if I should take an English course or a Philosophy course. I would prefer to take philosophy, because it is waaay more interesting. However, I’m worried that if I take philosophy over English, next year I won’t have the prerequisites necessary for other courses I may have to take. Also, I need to have 1 full credit, but I’m not sure if I can take a half credit in philosophy and a half credit in English instead of choosing between the two. Basically I don’t know if taking a half credit in two different faculties equals a full credit. What should I do?