I know there are some people who do approach things that way and then when something good happens instead they can rejoice, but if it doesn't then they can deal with it. Not sure that it's the best way to handle things though; or if it's really a good way to progress on what you want to be a healing journey. Maybe trying to tackle things more realistically and work at coping skills for that would be better?

Really want to jump in and do this for you; however, it would be better if you do it yourself

eg. look at questions like

What is the realistic value and likelihood of T terminating you? what evidence do you have that she is likely to do this? what evidence do you have that she won't do this? what would she gain by terminating you?

What is your experience of her being mad previously? How did being "mad" look? What did it sound like? Was she really mad at you or at a behaviour (eg. the headphone thing)

Has she been less kind previously when you've talked things through?