Welcome to Semstr!
Start by adding your semester. Next you'll add your courses, then what's due.
Things that happen most weeks, like school, practice or a job. The planner keeps these times free.
From Brightspace: open Calendar → Settings → tick Enable Calendar Feeds → Save → Subscribe → Download.
From Google Calendar (for Google Classroom): Settings → Import & export → Export, then unzip the download.
Then choose the .ics file here. Nothing is added until you check the list and tap Import.