I'm so sorry I've been absent for so long. I should have checked up on you instead of burrowing my head in my own issues. I'm caught up and very sad by what I read.
I had comments to put in from previous posts, but nothing I can say is relevant right now. I agree w/ the others that you need to focus on your father and continue to do all that you can to be w/ him.
Your STBX is an a-hole for not helping you as you deserve to be w/ your father. As a father of a daughter, I can't think of anything more important than for him to know how much you love him and for him to see how well you've turned out. You are strong and wonderful and he is beaming w/ pride because he's your father.
Spend time w/ him and enjoy every second. Make him laugh as you share your love. I will be praying for you and you will be in my thoughts, my dear. My friend.