I agree with your decision to put the ONE Ts notes aside now. I'm sorry she failed you. I hope she was at least useful to get you to this place you are at now... except the depression.
Anytime you lose a T, or change Ts it's "traumatic." It's a big change, imo. I personally don't know how I would do at that.
But since she didn't really ever connect with you, it's good that you two have separate paths now

Yes, a new opportunity to find someone to take you further along this healing path!