on the one hand a psychologist has to keep quiet because professional discretion and if she already knows you maybe she could know a solution for your problem that suits you best...
on the other hand it could be really embarrassing depends on your problem and then maybe she wants you to tell your parents ...but I don't think she would tell them without your permission....you have to decide for yourself what's more important.....I hope I could help you :)
If you are in the US, there are laws in place both nationally and in individual states to protect your privacy. Licensed psychologists and therapists are bound by these laws of confidentiality. If you are over the age of 18, the only time this confidentiality can be breached without your consent is if you pose a danger to the public, if there is domestic or child abuse of some kind (in both cases, authorities would be contacted) or there is a court order (which would likely not come from your parents.)
If you are under 18, check with whatever agency governs mental health care in your state. Different states have different ages at which you are entitled to full confidentiality. If the state allows the involvement of your parents, a reputable psychologist would still keep all but the most risky of behaviors (potentially life-threatening) confidential.
I know that I need to talk to someone because I have a problem and I've decided to talk to a psychologist. Problem is she knows me and my family personally. I'm afraid to trust her because I'm not sure if she will really not say anything to my family. I need advice regarding this. Has anyone of you ever been in the same situation? Should I trust her or should I go to another psychologist, one who doesn't know me or my family personally? Thanks in advance, guys.