Can you maybe ask your OLD T what you should ask your NEW T for as support? I'm sure your old T knows stuff about you and maybe can offer you a tidbit of wisdom so you can get an idea?
Or if all else fails, ask your new T for the same sort of support you'd have asked your old T for. Because even if it won't necessarily mean the same for you, it might still help?

It sounds like you're not going to have a very good week at all!

Triggers SUCK.
When do you see your new T next? Sometime in the next two weeks maybe? You could ask for that, you don't even have to necessarily talk about what's bothering you but maybe just having the added support could help?
I find asking for what you need realllllllly hard. I want a hug, I want someone to listen, I want someone to read my mind and tell me what I want, I want someone to just be there, I want someone to give me advice, I want someone to distract me, I want someone to hang out with, I want someone to make me laugh, I want a memento or a small thing to remember that person, I like handwritten notes and voicemail messages, I even like people just leaving me random messages saying that they care and were thinking about me. But the trick is knowing what I want at the time, and that's the hard part. Most of the time you're so overwhelmed with stuff that you just want your mind to stop screaming and all the noise to stop. I want to feel safe and secure and feel cared for and cared about. I want people to say that they like me and even to tell me what they like about me sometimes.

Sorry for the rambles, one moment at a time. You'll make it through this.