It is important to confront your sister when you feel the time is right. It is important that you do not pressure yourself to confront her too early or you may not get the results you want. I prepared mine like a speech. What do you want to say to her? Be ready for little tactics perps use to get out of the blame or try to minimize the horrible thing that they did to you. Sometimes confrontations for this don't go right the first time and must be repetitive.
Your moving in the right direction, Keep it up.
Truth is the very reason we strive to live. It surrounds and resides within us. Accepting the truths we already know and seeking out those we do not is a direct path to inner balance and joy. For life is not a means to an end, but a journey. Life comes and goes but the truth will always live on.