My thoughts:

There is no such thing as "psychoanalysis".

That is, the term psychoanalysis does not uniquely define what actually happens in sessions. It very much depends on the individual analyst -- which means you are the one who has to decide if what he or she is doing is good for you. The person who needs to be already stable enough to decide that, is the one who is looking for help. Good luck. You may find someone who can really help you, and you may not.

I think the state of the art or science is not advanced enough to have confidence in it to begin with. You are left to decide that.