The Past Is The Past....that Is Why It Is Called A "past"

I have learned long ago to let go of my painful past, it tore me up for years.....went through lot of therapy, and finally broke the chains of it, it no longer controls me, I control it now.......
How ever, my sister is still locked up in yesterday. It has put a big wall between us, she punishes me because I have let go, her life is closed in, she is cold, she lives cautiously behind walls, misses out on the relationship we could have, she is bitter and mean, she is hurtful to me, especially when she drinks, the darkness in her comes out, and she tears into me, I shove it back and tell her to grow the hell up!!
The past is the past. I know it is hard to escape the pain of it, it will never leave us, but we can put it in a place where it can no longer hurt us the way it did, control our lives, destroy everything we go near, once you have that control, then it is all comes into play. Our past influences who we are, but we are responsible of who we become. Staying trapped in your past, the ones who make it bad, wins, escape it, control it and be free and happy, you win. It come to the point where you can remember your past, without it tering you apart, it will make you stronger, more aware, especially when it comes to relationships, what your going to put up with, what your not going to, what you will allow and what you will not, it just all comes together.