Trust is so hard. And just having that discussion with the new t. In itself would be difficult for me.
Question to ask yourself

Do you feel you connect with this T?

Do you think eventually you can trust this T and she trust you?

Did you interview this T? Or was it just someone in the same practice that picked up your retiring T.

If you dont feel you connect you can always stay with the t temporarily but at the same time reach out to other t and interview them or do a get to know you meeting. During these meetings ask how long they plan on staying in practice and any other questions or concerns you might have. I wrote a list of things down so I wouldnt forget. Because I get real anxious when I am sitting with a new t

I understand the trust issue and how hard it is.

I just terminated with my t. My chice and it was ugly...
Because I pivked the wrong t and the connection was never there for me.