you sound a bit like me - you want answers that are a bit more scientific and concrete, but i'm not sure you'll get that from a psychodynamic therapist.

CBT is more structured, and has clear goals and time frames. It is also more clear on how it is supposed to work and you are told what your part in it is. I think DBT might also be a more practical here and now therapy. Lots of psychiatrists like CBT because there have been many RCTs showing it's efficacy.

A question I ask therapists is probably similar to you: show me the randomised control trials that show their type of therapy is beneficial for MY particular problems.
I want a timeframe for when I will be able to know if it is beneficial and worth continuing, and I don't accept some vague answer.
I also want some objective evidence/assessment to measure if I've improved - not some vague I think I might be a bit better
I also want them to give me a clear management plan - there should be a purpose and pre-defined goals for every session if I'm going to bother spending my money on it.
i also want to know how what we're doing in session is either part of the treatment plan or how it will change the management plan.
This is a rather medical model of things but it is what I feel comfortable with and I don't think it is unreasonable but many therapists are uncomfortable with them - I also do my own research and find journal articles and ask about them, but I never seem to get satisfactory answers. I remember I read an article contradicting what my t told me, her reply was I haven't read that study - not exactly convincing.