Unable to delete Grammarly from MacBook Air

I have scowered the internet for days about how to delete grammarly, It is considered AI at my university and unacceptable and it is so important that I delete it before I start any essays. The issue is it wont close in order for me to trash it. First I attempted to close it regularly, still open. I then force quit it, which still left it open. and then I had to learn what the activity monitor is and force quit those, yet it keeps replacing itself once deleted. Why does it have a recovery feature when its force quit??? what do I force quit to delete that recovery feature? I need to get this off my laptop to I dont get flagged for academic misconduct.

[Re-Titled by Moderator]