How do you manage projects and daily life using Apple Notes, Calendar, and Reminders?

I’m a student and have been using Things 3 but am trying out to rely more on Apple Notes. Currently, I use checklists in Notes to track specific tasks for projects and assignments, keeping everything organized in one place. For general school-related tasks that don’t belong to a specific assignment or require deadlines, I add them to Reminders. This approach helps me stay focused—when working on an assignment, I only see its tasks without distractions from other projects.

For planning, I either schedule time in Calendar or create a reminder to work on a project or assignment. I know I could use lists in Reminders for projects, but I find it cumbersome to navigate on Mac compared to Things 3. Plus, Reminders lacks good note support, so adding context directly in Notes is much easier for me.

I’m curious how others balance using these three apps together and avoid overlap. For instance, I sometimes struggle to decide whether to create a reminder or time-block tasks like "work on Assignment X" or "read Chapter 5". How do you approach this?