(((((((MSF))))))))
I'm sorry it's been hard getting your parents to listen to you. I know how difficult and hurtful that can be.
My parents are both aware of my depression, but we rarely actually talk about it. I'm perfectly comfortable bringing it up, but my parents tend to change the subject when it comes up, and we never actually use words like "depression" or "therapy" unless we absolutely have to, and then I can tell that it makes them squirm. Maybe the problem is that your parents don't have enough of an understanding of depression to really know how to deal with it or the fact that you have it. Maybe they're having a hard time handling the fact that their child is having problems? I think one of the most difficult things for a parent to face is the idea that their child is unhappy, and they may be feeling helpless in the face of that.
I don't really have any advice on the matter because I haven't figured out what to do about my parents' discomfort either. I just wanted you to know that I understand and you're not alone.