Hey man, Ave Lucifer.
Also, academics are weird ones… I say this as someone with a history of promiscuity. ALSO, while I 100% believe that curses and hexes should be done at the pleasure of the practitioner, I echo the concerns of both @Dralukmun and @DarkestKnight. If you want him out of your life for good, I can provide you with a spell to do so… you’ll find it linked below.
Curses and Hexes are ideally used sparingly if it all. And remember to ask yourself questions about casting it. I’m saying this as someone who has cursed quite a few people in their day, sometimes the best option is writing their name down and shoving it in a jar of molasses instead. If Lucifer presented himself to you and answered your prayers then perhaps you should start with him before working with a diverse array of demons. Ask Lucifer for advice on how to proceed and make him an offering. Working with demons though, they will know your intent before you even open your mouth. While they can be quite helpful and informative, they can choose not to help you as they are under no obligation to provide aid.
Here is the link I mentioned: