Thank you so much Sarahsweets for your feedback, it's very helpful

Yes, I recognize that this obsession in my relationships with people is a pattern, I've known this for a long time. I just hoped that by moving to America, somehow I would change or something. In fact, I just lost another friend because of these obsessions that make them very frustrated! I'm trying to work on this through therapy, but it doesn't seem to change!

The thing with the professor is a completely different problem that regards studying, & it's shared by other students. Fortunately, I tend not to have or practice obsessions with people in bureaucratic authority above me!