tried talking to my parents

i have always found it difficult to talk about the way i am feeling and normaly write it down in a letter. however yesterday i decided that sitting down and talking through what i am going through rationaly with my mum and step-dad would be a good idea. because i have started to improve slowly it now feels like they are in denial about me having depression at all and i feel like they are ashamed of me because of it. i tried sitting down with them, my dad is a teacher and has alot of work to do but he knew how hard it was for me to do this. when we sat down he just carried on doing his work and making snide comments at what i was trying to say, my mum was in the room aswell and doing all the talking with me. i started crying within a couple of minutes because it felt like they didnt care or want to listen. i ended up walking of and couldnt stop sobbing, i feel so pathetic because i thought that it would be ok to just sit and talk. i feel so worthless and just don't know what to do anymore, they are treating me as though i am making everything up and are ashamed of me. my mum takes me to see the psychiatrist when i have an appointment but she makes a point of not coming in with me. has anyone else had this experience? me and my mum are normaly realy close but it feels like she is distancing herself.