Mental health

First time poster and on mobile so apologies for any issues.

This isn’t very pressing and may sound a bit silly but I honestly need a bit of help. So I’ve been struggling with my mental health for a while now and nothing seems to help really. To make a long story extremely brief, I have more childhood trauma from being abused by someone I at the time considered a friend and a rather uncomfortable home situation. I’ve finally reached a point where it’s either gotten to be too much and/or I finally have the strength to deal with it. I was briefly in talk therapy but that did very little, and now I’d like to ask to see a psychiatrist. I have horrible anxiety and feel immense guilt and shame because of my mental health. For context I am a legal adult(19f) but I live with my parent and am under their health insurance, both are fairly supportive of me. I just don’t know how to reach out for help at this point and was wondering if anyone had some advice on how I would go about asking them. I know it’s horribly silly that I need help for this but I’m stuck. Thank you for reading! ☺️