Hello Selina91: The Skeezyks doesn't know as he has much to offer with regard to your concern. But I saw that no one had replied to your post. So I thought I would. Perhaps some other members, here on PC, who have had some experience with this, will yet reply to your post.

My only thoughts with regard to this are to try to not be around him any more than necessary. Make a point of being in different rooms, doing different things. Also, if there is someone else in the family who is aware of what happened, perhaps talk with them about your concerns. Perhaps they can help "run interference" for you, so to speak.

Beyond that, perhaps another important thing is going to be to try to find ways to manage the stress / anxiety you may feel at having to spend time around your brother. If you can, go for walks, meditate (if that's something you're into), try to create opportunities to do such things as listen to quiet, uplifting music. (There are a lot of wonderfully soothing Sufi chant videos on YouTube, for example.)

What happened to you was not your fault. (I presume you know that.) And you can take pride in the fact that you've overcome. The shame is on your brother. Be gentle with yourself & stand proud!