I think it is important to acknowledge that therapy stops being therapy when that anticipated 2-year period begins. So one can no longer expect it to be without frustration any more than anything else in life. Even the possible relationship after that time is no longer meant to provide you with attention, support, or whatever you were used to during therapy.

When I ended therapy, it wasn't all at once. I planned to do that but what happened was still emailing with the Ts for a good while and even went back to a couple more sessions with both. In retrospect, that contact did not provide me anything useful, it more just prolonger and refreshed some of my frustrations (with first T) and extended a useless habit (with second T). It all stopped gradually and my urges about contacting them weakened and eventually vanished completely.

What is very hard to see and accept because it is so fresh, is that your feelings, perceptions and expectations are very likely to go through many changes in the future. Probably even sooner than you would think right now. I was not in your shoes but what I have experienced is how dynamic the whole thing, how much and how many times my assessments, feelings and conclusions regarding my past therapy has changed. It's actually been pretty amazing and often enjoyable - still a strong sense of learning and discovering stuff, actually for me even more after therapy than what was during. The distance really clarifies and opens up new perceptions and realizations. This is a strong part of why I keep using this forum - I read others' experiences, express opinions, and keep re-evaluating my own past experiences and its conclusions in a very dynamic way. This is now more useful for me than the ongoing therapy in the past. And now it's all free! I definitely did not know all these shifts would happen just after terminating therapy - for me back then most of what I wanted was to be over it and move on. But it keeps unfolding in my mind and I don't need any contact with the Ts for it to happen.

Another thing I often suggest to people is to look at it as suddenly, abruptly giving up a rewarding habit. You will no doubt experience intense cravings for a while, maybe even quite long, and some states may be very uncomfortable. But it will lessen, you probably cannot imagine now but it will! The no contact is actually very much in line with easing the discomfort as the reinforcer is stopped completely. I know that I may sound boring always using the addiction analogy, but it is not without reason - many people, including yourself, get intensely hooked on therapy. It really works very similarly to giving up a drug of choice - the brain processes it similarly. I sympathize with you, not so much via my therapy but from getting sober from substance abuse. It was hands down the most difficult experience of my life and those cravings in the beginning felt out of this world, totally mind-altering and uncomfortable to extremes. I often felt intensely desperate, sometimes even suicidal in those states because it felt like I was stick with them and would experience them forever, and I did not want to continue struggling that way. I don't know for sure but I would not expect the desires for a person to reach the same state because the person (your ex-T) did not dose you with chemicals directly but indirectly I think that's what happens. So now your brain needs to get used to not getting your fix and it will take a while. But it will get easier if you stick with it, I would gladly sign a guarantee for you if I could and that helped. Your perceptions and expectations will also change. It's a gigantic darn patience game