How do I tell my family about being abused? Please help?

I want to know how to tell my family that I was abused at three years old. I have only just started admitting it to myself. I suffer from Depression and I have been very avoidant and extra quiet around my family. I have no friends whatsoever. I just feel it would be a good idea to tell and get it out in the open for some reason, do you know what I mean? Yet I feel so very, very ashamed and scared of telling, is there anyone reading this here that has gone through these feelings of not wanting to tell? I feel like the "unlucky" one in my family. I have already told my mum but she don't believe me. If I do tell will I regret it for some reason? I have recently had CBT therapy where I told the consellor and was believed by her. I just don't whether to tell or not. Tweet