Just a thought, maybe your interviewing skills were subpar only your 2nd rotation in and during a niche rotation, and throwing an attending under the bus probably made you look like the problem and not them (i.e. justified their evaluation of you to the course director).
I like to say that 3rd year is more an existential crisis than anything. Everyone is really smart, and they study A LOT. 80% correct on STEP1 is about a 262, 80% correct on an OBGYN shelf exam is only 68th percentile. As you have observed, it's not exactly like you can just study clinical skills and get better. You really have to struggle to learn, try things you're bad at, look stupid a lot. Whereas in 1st-2nd year clinical settings you get a lot of positive feedback, you come to realize that this is because those preceptors expect almost nothing of you. As you become a 3rd year then a resident, attendings expect a lot more of you, and tend to give you more harsh and real feedback. You have to develop a thick skin and toughen up, and if you walk around thinking that this interaction or that comment is going to ruin your career, you will go crazy. In fact a lot of attendings are much more interested in how you respond to adversity than they are in you being amazing at everything the first time.
I of course wanted to be great at everything and had high expectations of myself. But it was helpful to see that everyone struggles, literally at every level. I've seen interns struggle to present the way their attendings want them to, I've seen residents struggle assisting in surgeries they're unfamiliar with (fellows too), I've seen fellows struggle (like REALLY struggle) to suture laparoscopically in the rectum, only to have their attending say that it took him even longer the first time he tried to do the same thing, I've even seen experienced attendings struggle, for example the other day I saw an anesthesiologist try for a long time and fail to get an arterial line on a very sick patient. They all get frustrated, but one of the fellows said something that really stuck with me. She was doing colonoscopies and if she went a little too slow, the attending would come in and take over, and she said, "I wish he would let me struggle" (eventually he took over less often). But this made me realize that rather than fear or dread things that I will struggle with, I should realize that this is when I am learning the most, and that through the struggle I will both learn and toughen up. It is actually a privilege to be allowed to struggle in medicine, because that is when you will learn the most and fastest.
