For me, traffic bothers me proportionally more depending on how much of a hurry I'm in. If I have no obligations to be somewhere on time, and I'm not in a particular hurry, it's easier to just put on some music or listen to an audiobook. Conversely, if I'm already late for work, and I need to finish an errand before I can even think about heading to work, and people are counting on me to be there on time, that's when the traffic really gets to me.

Not sure how much this will help you, but that's my experience of it. Unrelated, but I'm reminded of this particular scene that really captured the worst case scenario morning traffic in a humourous way https://youtu.be/C3jizSM6M0o