A message...an opening?

I just sent this email message to my sister. It is so difficult to be able to communicate with her because of all the restrictions my mother has put on her. I was sitting at the computer and I was just staring into space wondering how we could reach her... How can I teach her what it means to trust me? She will need to trust me if she is ever going to leave. How can I teach her this without overwhelming her or making her feel manipulated. I made her an offer. I sent her this message:

"Becca, I am sure you know that you have been on my mind more than usual. These last few days. I couldn't help but realize that you might have a lot of
questions about where I have been these last 5 years. I was wondering if I could
send you a few messages just explaining things. It won't confuse you...it is
about me. You are my sister. Since Mikaila is so much younger, I feel closest to
you. I have been without you for what feels like decades...I don't know, I want
you to get to know me again. Would you mind?"

I am hoping that I can show her my journey...complete with fear and triumph. She may be (or will be) feeling the same things. Will that line the path to her trusting me? She might say yes...God, Open my mind to remember the details she needs to hear...say the things that will break her heart for herself!