Therapy and parents

Hi! I’m a 17 year old girl who’s been struggling with undiagnosed depression and anxiety and who knows what else. I don’t have any meds for it and I was doing fine for years (I started noticing symptoms around age 9) But I am starting to get worse, I have anger issues causing me to wanna hurt myself or others (I used to cut) And though my anxiety is getting better i’m still struggling with depression. I want to know how to ask my parents about getting a therapist and/or some meds. I’m not sure how to go about it at all. My parents are kinda strict. And I don’t have a very good relationship with them.

Edit: I’ve also heard horror stories of doctors telling girls that they’re just faking it or they just want attention or blaming it on hormones. Have any of y’all experienced that?