The attached is one way of doing this.
I created a query for each Section ie Sec-1, Sec-2 and Sec-3
I then created a Report for each Section
Then the Final Report has all 3 sections
Look at the rptAllSections and see if this suits.
Please also study the relationship diagram - I changed how...
Your Form DefrmStaffLesson is constructed very wrong
The Main Form is based on a qryStaffLessonDays which consists of 5 tables
Going by your Relationship Diagram this Form should allow you to select a Day of the Week - I would suggest that this would be based on the tblWeekday