I am scared as shit!

A man that molested me as a child once is being accused of the same thing by two of his wife's niece's. I'm in contact with these victims fam and I just shaking of the taught that I will have to give testimony about what happened to once when I was a child. My hands are actually shaking as I write this post.... I don't even know if I should even continue on with this, its making way to nervous.