I think really just do as you please. I only had "tutoring" for Maths and Physics.
The only reason I needed a tutor for 4U and 3U Maths was just that my teacher was pretty bad. He just read from the textbook and would rewrite the exact examples the textbook gave...like, what? I found it hard to learn that way, and I basically could not understand a thing. I flopped my first assessment task because of that. Even when I got a tutor, 90% of the work and learning was by myself, and I just needed him to clarify certain questions. I.e. just a teacher I could regularly ask for advice. I did textbook questions over and over until I was competent. And I learned a lot of methods independently through past papers.
My "tutor" for Physics was basically me just reading from a textbook with someone by my side. It was more of a "discussion" as opposed to route learning or studying. My "tutor" was just someone I talked to my ideas on Physics about, and every "lesson" was as I said, a discussion of Physics and I improved my understanding there. Wrote absolutely zero summary notes on it. I just really loved Physics and on the side watched videos about certain topics independently. Also, thought experimenting was my idea "study" goal, I always ask how a factor affected another and such in my head. I never really wrote notes for Physics, and it just all sort of naturally absorbed into my head. My teacher was pretty good, but I think it would be hard for students to do well with only his in-class stuff without independent study.
Also, for English Advanced, I never had a tutor for it and ended up with 3rd in my school with a mark of 94. (Was 2nd until I got 90 on my trials, and someone got 95 and took my rank :[ ). I really find English you can't be tutored for, and it's really just a case of independent study. Like seriously, English Advanced is about your own opinion of the text and personal voice. USE YOUR TEACHER FOR ADVICE. But if you're in desperate need for help to climb from failing the course, by all means, yes, use a tutor.