2. thoughts...
first, I really appreciate you asking a bunch of the questions going through my head right now

second,a friend of mine (who shouldn't be trusted) explained trust this way:

everyone can be trusted, the real question is WHAT can they be trusted to do.

My son can be trusted to eat everything in sight

I think he has adopted this "definition" of trust due to his own trustworthiness but it has helped me as a stepping stone.

I don't have to totally trust massage T, but right now I can trust her to
Be on time
Be gentle
Keep things confidential
Touch me only in appropriate ways
Honor my comfort level
Return my phone calls
Respect my beliefs when we have different beliefs
Meet my needs when she can and honor (not make me feel ashamed for having them) them when she can't

This also helps me be more gentle with myself. I have a little part that massage T wants to help. The little part is very scared because she has had awful experiences with other people. The little is waiting to know if massage T can be trusted to:
tell the truth
stick with us
be OK with sadness
be OK when there are not words
be OK if the little makes a mistake about personal space and comes too close

So... is massage T trusted?
I think I have a lot of trust in massage T

It also shows me where I am learning to trust more... I have worked with 2 other massage T's and I limited where they could touch me so that I could keep myself safe (Neither one would have ever hurt me my ability to trust was just lower). This massage T I don't feel the need need to keep myself safe, I trust her to only touch appropriately.