I took the topic as teacher
not just teacher
to complete my homework
to teach me lessons,
to take care of me in school
just a teacher.
friendly but strict
polite but scary,
the clarity you gave me
made you a friend instead of teacher.
to crack jokes in the class
or to make the class interesting,
or to make make class punctual enough
not just a teacher but a friend.
hope so my answer is useful and up to the mark !!!