If I ever had a doc tell me I lack insight, I would tell them that they better enlighten me, that is their job to explain better if there is something that they are trying to do or have decided, but I do not understand or readily accept at face value.

It is most important to listen to yourself (your body and your mind) and to do your own research, in this you can trust yourself to find out as much as you can paying attention to both the research and yourself; then no matter what someone else tells you, you have facts to check it against and checking with your own experience and symptoms, then you can decide whether to trust in their opinions. Anything you can do to educate yourself will make a difference to help you make informed decisions about your dx, care, and treatment options. Then work as a team with your providers towards a correct dx and your treatment goals.