Hi Keith, I'm sorry she reacted that way
But in a way the most important thing in it all wasn't your mothers reaction, it was the fact that you spoke out about it. You stopped keeping silent about it, and you shouldn't have to keep on keeping silent about it.
And abuse is abuse, there's no changing that...........whether she was a year older than you or even a year younger than you (!!!) if she abused you, she abused you!!!
And you're not back to where you were 10/1/14, you know that deep down, don't you??
Even if your mother didn't hear you, you've spoken out to us, and we hear you. And there will be plenty of people out there who will hear you too.
So, no more silence!!! Time to get some help/support, help you absolutely deserve. From here I'd say maybe a T, an abuse hotline or organization.g. RAINN??? Although we're right here for you too if you want to talk about it...........

Alison