This was like me as a teenager. I'm thinking, "hell, lady-I-don't-know, I got myself here, NOW what?" Partly it was me being a teenager, and partly it was because I was dissociating and didn't know what the heck was going on.I understand how you feel. This would be a HUGE problem for me. Unlike you, I wouldn't be able to get started at all; I would just sit there for a while and then have to leave.
She told me that I was treatment resistant. Thus started the long and complicated journey of therapists.
I do think working as a teenager is different. Now, I would know to clue someone in - as in being direct, as @joeylittle and others on this thread have advised - saying something like, "I don't know how to start" or "I need you to ask questions" or even "Hey I am confused, what are you trying to do, to help me?"