Hi Linje,
I'll need to think on this a bit and see if I can come up with something more helpful to say, but just wanted to let you know that I have known and loved more than a few people like you--late bloomers (are you familiar with that expression? I don't know French so don't know if there's an equivalent).
Conquering your addictions is a huge thing; that takes a lot of work. You are still so young, and you still have time to figure out what else you want to do. I know that sounds patronizing, but I was 25 once
What kind of reaction do you think your psychologist was trying to provoke in you? It sounds like she can see that you have the potential to do something wonderful, and she wants to help you to see it too...
I don't think I've answered your question, but I wanted to offer my encouragement.
Welcome to the forum!
Mo